Abdullahi (Baban Sadiq)
Gabatarwa: Al-Fazaaree,
daya ne daga cikin sahabban Manzon Allah (tsira da amincin Allah su kara
tabbata a gare shi), watarana ya dawo gida sai ya samu matarsa ta haifa masa
jariri baki sitik! Nan take hankalinsa ya tashi. Domin
balarabe ne shi, farin balarabe kuwa. Haka ma matarsa. Amma
ta yaya aka yi ta haifa masa jariri baki sitik? Nan take ya nannade
wannan jariri a zanen gayo, ya kama hanya sai wajen Manzon Allah (tsira da
amincin Allah su kara tabbata a gare shi). Yana zuwa ya tarar da shi
cikin sahabbansa kamar galibin lokuta. Yana isowa wajensa bayan ya
masa sallama, sai ya nuna wa Manzon Allah wannan jariri, ya ce: "Dubi abin
da ta haifa mini." Sai Manzon Allah (tsira da amincin Allah su
kara tabbata a gare shi) ya fahimci inda ya dosa nan take. Sai ya ce
masa: "Kana da rakuma?" Sai ya ce: "Eh, ina da
su." Sai Manzon Allah ya sake ce masa: "Meye
launinsu?" Sai ya ce: "Jajaye ne." Sai Manzon
Allah ya sake ce masa: "Babu wani mai launin baki-baki daga cikinsu?"
Sai wannan balarabe ya ce: "Akwai," sai Manzon Allah
ya sake tambayarsa: "Daga ina ya samo wannan launi (bayan iyayensa jajaye
ne)?" Sai Al-Fazaaree ya ce: "Watakila wata jijiyar
(dabi'ar) halitta ce ya jawo (daga kakanninsa)." Sai Manzon
Allah ya ce: "Haka shi ma wannan, ta yiwu wata jijiya ce ya jawo
(daga kakanninsa)."
Watarana
Manzon Allah (tsira da amincin Allah su kara tabbata a gare shi) yana zaune sai
ga wani daga cikin mutanen Madina ya riko matarsa, rike da jariri baki sitik su
ma, a kidime. Suna zuwa wajensa sai mutumin ya ce: "Ga abin da
ta haifa." Sai matar ta yi caraf ta ce: "Na rantse da
Wanda ya aiko ka da gaskiya, a matsayin cikakkiyar budurwa ya aure ni, kuma ban
taba shigo da wani gidansa ya haye kan tabarmarsa ba." Fadin
haka ke da wuya sai Manzon Allah (tsira da amincin Allah su kara tabbata a gare
shi) ya nuna cewa lallai abin da ta fada gaskiya ne. Domin daga ita
har shi suna da dabi'un halitta wajen casa'in da tara ga kowanne, kuma kowanne
daga cikinsu na yaduwa cikin jikinta ne a lokacin saduwa, yana rokon Allah da
ya sa jaririn da za a haifa ya zo da kama irin nashi.
Ummu
Sulaim ita ce mahaifiyar Anas dan Maalik (Allah kara musu yarda). Watarana
ta shigo inda Manzon Allah (tsira da amincin Allah su kara tabbata a gare shi)
yake zaune tare da sahabbansa, sai ta ce: "Ya Manzon Allah, hakika Allah ba
ya kunyar bayyana gaskiya. Shin, wanka ya wajaba ga mace idan tayi
mafarki (ana saduwa da ita)?" Sai Manzon Allah nan take ya ce
mata: "Na'ma, muddin ta ga ruwa." (Ma'ana ruwan maniyya
kenan). Nan take sai Nana Aisha ta ce: "Shin mace ma na fitar
da wani ruwa ne?" Sai Manzon Allah ya ji, kuma ya bata amsa da
cewa: "Kayya, Aisha! Ta yaya ake samun kamaiceceniya to, (tsakanin jariri
da iyayensa)?"
Daidai
lokacin da Manzon Allah (tsira da amincin Allah su kara tabbata a gare shi) ya
shigo garin Madina lokacin hijira, sai Abdullahi ibn Salaam, daya daga cikin
manyan Malaman Yahudawan Madina ya je ya same shi, ya ce masa: "Na zo ne
in tambaye ka kan wasu abubuwa guda uku, wadanda babu wanda ya sansu sai
Annabi..." Daga cikin tambayoyin da ya masa akwai neman sanin
dalilin da ke sa jariri ke yin kama da mahaifinsa ko
mahaifiyarsa? Sai Manzon Allah ya amsa masa cewa: "Idan ruwan
(maniyyin) namiji ya riga na mace, to, (jaririn) zai yi kama da
mahaifinsa. Idan kuma ruwan (maniyyin) macen ne ya riga na namijin,
to, (jaririn) zai yi kama da mahaifiyarsa." Daga nan sai
Abdullahi ibn Salaam ya ce: "Na shaida hakika babu abin bautawa a bisa
cancanta face Allah, kuma lallai kai Manzon Allah ne."
………………………………..
Daga
cikin nau'ukan ilmin kimiyyar halitta da rai a duniyar yau, akwai fannin da ke
bincike kan dalilan samun kamaiceceniya tsakanin 'ya'ya da iyayensu ko
kakanninsu, na kusa ne ko na nesa. Da kuma kamaiceceniya ta dabi'ar
jiki, da dabi'ar tunani, da dabi'ar juriya ko ragwanci, da dabi'ar kirar jiki,
da dabi'ar tsawo da gajarta, da dabi'ar zati ko mutuntaka, da dabi'ar sanyi ko
zafin zuciya, da dabi'ar karfi ko kudurar zuciya, da dabi'ar taushi ko kaushin
hali da yanayi, da dabi'ar bambancin launin fata, ko launin gashin kai, ko
yanayin farata da dai sauransu. Har wa yau, me yasa wasu 'ya'ya ke
gadon cututtuka daga iyayensu? Me yasa wasu ke yin kama da dangin iyayensu
ba da asalin iyayensu ba? Me yasa ake haifan 'ya'ya masu dauke da
cututtukan da iyayensu ba su da su? Me yasa musamman a yau likitoci
da ma Malaman addinin musulunci ke shawartar samari da 'yan mata masu niyyar
aure da su je don gunadar da binciken jini da kwayoyin halittar jikinsu kafin
su yi aure? Me yasa jaririn da ake haifa wani ke zuwa namiji, wani
kuma mace? Dukkan wadannan nau'ukan al'amuran halitta ana binciken
yanayinsu ne karkashin wani sabon fannin ilmin likitanci mai suna "Genetics", ko
"Heredity" ko kuma "Genetic Inheritance", a
turancin kimiyyar halitta da rai.
Hadisin
farko da ke sama Bukhari da Muslim ne suka ruwaito shi, tare da sauran malaman
sunan, wato Abu Daud, da Tirmidhi, da Nasaa'i, da Ibn Majah. Hadisi
ne ingantacce. Hadisi na biyu kuma mursal ne, ba hadisi bane
ingantacce, amma ma'anar da ke cikinsa daya ne da wanda ke cikin hadisin da ya
gabace shi. Wato hadisin farko ya karfafe shi wajen ma'ana
kenan. Hadisi na uku ingantacce ne, domin Muslim ne ya ruwaito
shi. Sai hadisi na hudu, wato hadisin Abdullahi ibn Salaam, shi ma
ingantacce ne, domin Bukhaari ne ya ruwaito shi. Dukkan al'amuran halitta da ke
dunkule cikin wadannan hadisai da suka zo a sama, abubuwa ne masu ban mamaki da
suka faru, wadanda a lokacin faruwarsu babu wanda zai iya gudanar da wani
bincike a likitance don gano sababin faruwarsu, sai dai kawai a yi
imani. Amma a yau Allah ya kawo mu lokaci da zamani mai cike da
yalwa wajen samuwar kayayyaki da fasahar binciken kimiyya da likitanci, cikin
sauki. Ganin irin tasirin da wannan tsarin bincike ke yi a sauran
kasashen Turai na yau, musamman kasar Amurka, yasa na ga dacewar gudanar da bincike
na musamman don kosar da masu karatu, da yardar Allah, dangane da wannan sabon
fannin bincike, duk da cewa dadadden ilmi ne. Amma Malaman kimiyyar
zamani basu fara gudanar da bincike a cikinsa ba sai cikin shekarar 1981.
Wannan
kasida za ta gudanar da bincike ne kan asali da dalilan da ke haddasa wadancan
al'amura. Da farko bayanai za su zo kan ma'anonin kalmomin turanci
masu alaka da wannan bincike, wadanda mai karatu zai ta cin karo dasu a halin
karatunsa. Sannan bayanai kan "Kwayar Halitta" ko
"Tubalin Halitta", watau "Cell" su biyo baya. A
nan ne za mu fahimci tsarin wannan sinadari mai matukar muhimmanci, da
yanayinsa, da muhallinsa, da adadinsa, da kuma abubuwan da ke kunshe a cikinsa,
musamman irinsu "Tantanin Kwayar Kalitta" ko ganuwarta, watau
"Cell Membrane", da "Ruwan Rayuwa", watau
"Cytoplasm", da kuma "Asalin Sinadarin Halitta", watau
"Nucleus." A cikin sinadarin halitta ne al'amuran da suka
shafi bincikenmu suke kunshe.
Abu
na farko shi ne "Madarar Bayanan Dabi'ar Halitta," wato "DNA"
ko "Deoxyribonucleic Acid", a warware. Sai kuma babbar
kundi, wato "Ma'adanar Bayanan Dabi'ar Halitta," ko
"Chromosome" a turance. Bayan mun yi bayani kan wannan
babban kundi, sai mu zarce kan sauran abubuwan da ke da alaka da wannan babban
kundi mai dauke da dukkan bayanai kan dabi'un da 'ya'ya ke gadonsu daga
iyayensu, irinsu "Dabi'ar Halitta," wato
"Gene". Da "Dabi'ar Halitta ta Musamman," wato
"Allele." Sai kuma "Kebantacciyar Dabi'ar
Halitta," wato "Trait" ko "Genetic Trait", wadda ita
kuma ta kasu kashi biyu ne; akwai "Dabi'a Mafi Rinjaye," wato
"Dominant Trait," da kuma "Dabi'a Nakasasshiya," wato
"Recessive Trait."
Wadannan
su ne damuwanmu cikin binciken baki daya. Kuma Fannin gudanar da
bincike kansu shi ake kira "Genetics." "Nau'in Dabi'ar
Halittar" mutum kuma shi ake kira "Genotype". Wannan
wani abu ne da ba a iya gani, kamar yadda bayanai za su nuna mana nan kusa.
Amma "Nau'in Dabi'ar Halitta na Zahiri" (irinsu kama, da launin jiki,
da launin idanu, da tsawo da sauransu) shi ake kira
"Phenotype." "Gadon Dabi'ar Halitta" daga iyaye
ko kakanni kuma, shi ake kira "Heredity" ko "Genetic
Inheritance." Dan adam ba ya rayuwa sai da matsaloli na abin da
ya shafi lafiyar jiki. Wannan ka'ida ce gamammiya da Allah ya
sunnata wa dan adam, hatta kan abin da ya shafi "Gadon Dabi'ar
Halitta" akwai shi. Idan aka samu matsala wajen gadon wata
dabi'a ta halitta, har abin yayi mummanar tasiri ga rayuwar mai gadon, a
kimiyyance an samu abin da ake kira "Genetic Disorder"
kenan. To, shi dan adam a duk sadda ya samu kansa cikin matsala, duk
tsawon zamani, sai yayi kokarin neman magani; ta hanyar halal ko ta hanyar
haram. Ya danganci irin tarbiyya ko lalurar da ya samu kansa a
ciki. Don haka, "Fannin Ilmin Magance Tangardar Dabi'ar
Halitta" shi ake kira "Genetic Engineering." A karshe
wannan kasida za ta dubi hukuncin halacci ko haramci a Musulunci, dangane da
abin da ya shafi tsarin da Malaman Kimiyyar likitanci ke bi a yau, wajen gyara
dabi'ar halittar da ta samu tangarda, sanadiyyar nakasu daga dayan iyayen mai
gado.
Wadannan
su ne shahararrun kalmomin da mai karatu zai ta cin karo dasu. A
sashen da ke tafe cikakken bayani zai zo kan kowannensu, don a fahimci abin da
kowanne yake nufi.
Ma'anonin Kalmomi a Warware
Fannin bincike kan yadda ake samun bambance-bambancen dabi'a da
siffofin halitta yana da fadi matuka. Don haka dole ne mu shata wa
kanmu inda za mu faro da inda za mu tsaya, musamman ganin cewa wannan ita ce
kasidar farko. Akwai kalmomi masu dimbin yawa da ke ishara zuwa ga
muhimman al'amuran da muke son fahimtarsu kan wannann nau'in
ilmi. Amma za mu dubi shahararru daga cikinsu ne kadai, don kada mu
fadada bayani a karshe mai karatu ya bace, ya rasa inda aka kwana balle inda za
a tashi. Wannan sashen bincike yana da muhimmanci, domin ya kunshi
matakin farko ne da za su taimaka wa mai karatu fahimtar sauran abubuwan da ke
tafe. A takaice dai ma iya kiransa "Tubalin Fahimta."
Kalmar farko ita ce: "Kwayar Halitta" wacce a harshen
turancin Malaman Kimiyya suke kira da suna "Cell". Wannan
ita ce asalin rayuwa da duk wani halitta mai rai baki daya; daga dabbobi zuwa
mutane da bishiyoyi. Duk wani abu mai rai a tare da shi, to asalinsa daga
wannan kawayar halitta ne, watau "Cell". Wannan kwayar
halitta ido ba ya iya riskanta, kuma Allah ya watsa ire-irensu da yawa a cikin
jikin dan adam, misali. Duk bayanan da za su zo kan tsarin gadon
dabi'un halitta suna dogaro ne kacokam kan wannan tubali, watau kwayar
halitta. Sai kalmar "Cell Membrane", wato "Tantanin
Kwayar Halitta" kenan na can ciki. Wannan tantani aikinshi ne bayar
da kariya ga dukkan madaukan da ke cikin Kwayar Halitta. Kuma shi ne
ganuwa na biyu daga cikin kwayar halitta, bayan ganuwar waje mai suna
"Cell Wall." Sai kalmar "Cytoplasm", wanda a harshen Hausa
na kira "Ruwan Rayuwa." Wannan ruwa yana cikin kwayar
halitta ne, a cikin ganuwar "Tantanin Kwayar Halitta" da bayaninsa ya
gabata, kuma yana daga cikin abubuwa masu matukar mahimmanci da ke dauke a
cikin Kwayar Halitta baki daya. Wasu malaman musulunci masu kokarin
fahimtar tsarin halitta ta nassoshin Kur'ani ma suna ganin wannan ruwa ne Allah
ke ishara zuwa gare shi, da ya ce ya halicci kowace dabba ne daga ruwa.
Bayan "Ruwan Rayuwa" (Cytoplasm), sai abu mai mahimmanci
na gaba, wato "Asalin Sinadarin Halitta" wanda a harshen Turanci ake
kira "Nucleus". "Nucleus" yana cikin
harabar tantanin kwayar halitta ne shi ma, kuma shi ne jigo a fannin binciken
sanin tsarin gadon dabi'u da siffofin halitta a kimiyyance. Domin
shi ne yake dauke da dukkan abubuwan da bincikenmu ke dogaro a kansu wajen
sanin tsarin gadon dabi'un halitta. A cikin wannan "Asalin
Sinadarin Halitta" (Nucleus) ne ake samun "Chromosome", wato
"Ma'adanar Bayanan Dabi'ar Halitta". Kowace kwayar halitta na
dauke da tagwayen "Ma'adanar Bayanan Dabi'ar Halitta" guda 23
ne. Wannan ke nuna cewa a cikin kowanne, za a samu guda 46 kenan (23
x 2 = 46). Dukkan wadannan ma'adanar bayanan dabi'ar halitta iri
daya ne, a jikin mutum daya, duk da yake kowane dan adam na shi sun sha bamban
da na waninsa. Kowane dayan tagwayen "Ma'adanar Bayanan
Dabi'a" kuma yana dauke ne da zaren "Madarar Bayanan Dabi'ar
Halitta" da ake kira "Deoxyribonucleic Acid" ko "DNA"
a takaice. Wannan zare a siffar sarka yake, mai harde da juna. Kuma
a jikin layin wannan sakakken zare ne ake da "Kwayoyin Dabi'ar
Halittar" kowane dan adam. Wadannan kwayoyin dabi'un halitta su
ake kira "Genes". Kowane dan adam yana kebantuwa ne da
kwayoyin dabi'un halitta daban da suka sha bamban da na wani, wadanda ya gado
su daga wajen iyayensa ko kakanninsa ko kakannin kakanninsa, har dai abin ya
kai ga Annabi Adamu da Hauwa'u, amincin Allah ya tabbata a gare su.
Sai kalmar "Allele", wato "Dabi'ar Halitta ta
Musamman." Misali, daga cikin dabi'ar halitta akwai tsawo, da
gajarta, da saurin fushi, da fara'a, da sanyin zuciya, da zafin rai da sai
sauransu. Wadannan dukkansu "Dabi'un halitta ne na
musamman," wato "Allele. Sai kalmar "Trait",
wato "Kebantacciyar Dabi'ar Halitta" wajen rinjaye ko rauni ake
nufi. Idan mutum yana da wata dabi'a ta halitta mai rinjaye, wacce
ke bayyana a jikin 'ya'yansa, wannan ita ake kira "Dominant Trait",
wato "Dabi'a Mai Rinjaye." Idan kuma dabi'ar halittarsa ba
ta iya bayyana a fili, saboda rinjayar da dabi'ar halittar matarsa ko na
mahaifinsa suka yi a kan nashi, sai a kira wannan da suna "Recessive
Trait", wato "Dabi'a Nakasasshiya" kenan. Sai kalmar
"Genotype" wato "Nau'in dabi'ar halitta" na wani mutum da
ake iya gane shi da shi. Kowane dan adam idan aka gudanar da gwajin dabi'ar
halitta (DNA test) daga kwayoyin halittarsa za a samu yana da kebantacciyar
dabi'a ta musamman wanda babu mai irinta, kuma duk wanda ya dangance shi daga
cikin 'ya'yansa, za a iya gane dangantakarsu ta wannan hanya. Wannan shi ne
kokarin da Gwamnatin Jigar Legas take ta yi a halin yanzu kan gawawwakin
wadanda suka rasa rayukansu a hadarin jirgin Dana Air da ya
auku makon jiya. Ana amfani da wannan hanya ne wajen kokarin gane waye wane?
Kuma wa ke da alaka da wane? Wadannan al'amura ne da ke boye cikin kwayoyin
halittar dan adam, kamar yadda bayani ya gabata. Sai kalmar
"Genetic Code," wato "Tambarin Dabi'ar
Halitta." Jerin haruffa ne da ke wakilatar bayanan dabi'un
halittar kowane dan adam, wadanda ke da alhakin haifar da gadon dabi'a daga
maihaifi a misali, zuwa kan 'ya'ya ko jikokinsa.
Kalma ta gaba ita ce kalmar "Phenotype", wato
"Nau'in Dabi'ar Halitta na Zahiri." Kamar yadda ake amfani da
"Genotype" don gano alaka da dangantaka ta hanyar kwayoyin dabi'ar
halitta da ke boye a kwayar halittar jikin mutum, to, haka tsarin "Phenotype"
yake wajen gano dangantakar halitta, amma na zahiri; tsawo ne, gajarta ne, fadi
ne, sirantaka ne, fari ne, baki ne, da dai sauransu. A takaice dai,
"Phenotype" shi ne "Nau'in Dabi'ar Halitta na Zahiri" da
ake iya gani. Domin akwai dalilai guda biyu da ke haddasa tsarin
gadon dabi'un halitta a tsakanin halittu. Dalilin farko shi ne
bambance-bambancen da ke tsakanin kwayoyin halitta, wato "Cell"
kenan, kamar yadda bayani ya gabata a sama. Dalili na biyu kuma shi ne tasirin
mahallin da halittu ke zama a cikinsa ko a harabarsa, wajen sauya
dabi'ar halitta daga wanda ake gado zuwa mai gado.
Kalma ta gaba ita ce "Gene Mutation," wato "Canjin
Dabi'ar Halitta." Wannan kan faru ne idan aka samu kari ko ragi
ko jirkicewar yanayin dabi'un halitta, daga cikin kwayoyin halittar
mutum. Misali, mutum na iya rayuwa shekaru goman farkon rayuwar
aurensa yana haifan 'ya'ya masu kama iri daya na dabi'ar halitta, sai a gaba ya
samu wasu 'ya'ya masu bambancin dabi'ar halitta daban da wacce 'ya'yansa na
farko suke da ita, sanadiyyar wancan dalili. Idan haka ta faru, to,
an samu "Sauyin Dabi'ar Halitta" kenan daga kwayoyin halittar da ke
jikinsa ko na matarsa. Wannan shi ake kira "Gene
Mutation." Kalma ta gaba ita ce "Genetic Disorder,"
wacce ke nufin "Tangardar Dabi'ar Halitta." Wannan
tangarda na haifar da cuta ne na musamman, misali kamar su cutar sankara da
sauransu, kuma hakan na faruwa ne sanadiyyar canji ko sauyin dabi'un halitta da
ke cikin kwayoyin halittar Uba ko Uwa, mai dauke da dabi'ar halitta mafi
rinjaye, wato "Recessive Trait." Wasu cututtukan kan samu
ne ta hanyar gado daga Uba ko Uwa masu dauke da cutar, wasu kuma kan samu ne
sanadiyyar "Canjin Dabi'ar Halitta" (Gene Mutation) da ya faru daga
baya, a kwayoyin halittar mai gadar da dabi'ar.
Kalma ta gaba ita ce "Gene Therapy," wato "Magance
Tangardar Halitta." Ana kuma yin hakan ne ta hanyar maye gurbin
dabi'un halittar da suka lalace ko masu haddasa tangarda ta hanyar gadar wa
'ya'ya cututtuka na musamman, da wasu dabi'un halitta (Genes) masu kyau,
wadanda suke lafiyayyu. Fannin "Gene Therapy" ne ke
magance matsalolin "Genetic Disorder", wato "Tangardar Dabi'ar
Halitta." Sai kalma ta gaba, wato
"Heredity." Abin da wannan kalma ke nufi shi ne, tsarin
"Gadon Dabi'un Halitta" daga mai gadarwa (Uba ko Uwa) zuwa mai gado
('Ya'ya ko Jikoki). Wadannan dabi'un halitta dai sun hada da launin fatan jiki,
da launin idanu, da launin gashin kai, da dai sauransu. A wasu
lokuta a kan yi amfani da kalmar "Inheritance" a maimakon "Heredity." Duk
ma'anarsu daya ne a wannan fanni. Sai kalmar "Genetics", wadda ke
nufin "Ilmin Gadon Dabi'un Halitta." Wannan shi ne sunan
da wannan fanni ke tutiya da shi. Suna ne gamamme. Sai
kalma ta karshe, mai suna "Genetic Engineering," wato "Fannin
Kwaskwariman Dabi'ar Halitta" ta hanyar kimiyya da fasahar sadarwar
zamani. Wannan fanni ne mai hadari, kuma nan gaba bayanai za su zo kan
muhawarar masana kimiyya, da masana al'adu, da masana tarihi, da Malaman
addini, kan dacewa ko rashin dacewar wannan tsari na kwaskwariman dabi'ar
halittar dan adam, musamman.
Asali da Bunkasa
|
Duk da cewa bincike na hakika a tsarin binciken
kimiyya na zamani kan wannan fannin ilmi bai shige shekaru ashirin da wani abu
ba, sai dai idan muka yi la'akari da tsarin zamantakewar dan adam a wannan
duniya, dangane da tarihi, za mu samu shi ma tsohon fannin ilmi ne kamar sauran
nau'ukan ilmin da suka danganci rayuwar dan adam. Don haka idan ana
maganar asali, a iya cewa lallai ilimi ne mai asali tun farkon samuwar halitta
a doron kasa. Wannan a fili yake kamar yadda muka gani a misalan da suka zo
cikin hadisan da suka gabata a Mukaddima. To amma shahararsa da
bunkasarsa basu kunno kai ba sai cikin 'yan shekarun baya. Kafin
wannan lokaci da muke ciki, akwai wasu marhaloli hudu shahararru da wannan
fanni na ilimi ya ketare.
Marhala ta Farko
Kafin bayyanar tsarin binciken ilimin kimiyya irin na zamani,
fannin Tsarin Gadon Dabi'u da Siffofin Halitta yana nan, kuma galibi mutane kan
bambance dangantakar da ke tsakanin mutane ne ta hanyar dabi'un halitta na
bayyane, watau kamar yanayin kirar jiki, da tsawo, da launin idanu, da launin
gashin kai, da dai sauransu. Amma a kimiyyance babu wasu abubuwa da
ake iya tantance ingancin tabbacin wannan alaka. A cikin wannan
marhala ta rayuwar dan adam dai abin da aka dauka shi ne, mutane kan gaji
dabi'un halitta ne daga iyayensu, ko danginsu, gaba daya, ba tare da wani
kwange ba. Ma'ana duk Uba ko Uwa, suna gadar wa 'ya'ya dukkan
dabi'un halittarsu ne baki daya, babu kwange. Wannan tsarin tunani, a
binciken ilimin dabi'un halitta na zamani, shi ake kira "The Law of
Blending Inheritance." Watau ka'idar da ke nuna cewa dukkan
halitta kan gadar wa zuriyarsu cikakken jerin dabi'ar halittar da suke dasu
ne. Ma'ana suna sajewa da su babu wani bambanci ko
kadan. To amma da tafiya tayi nisa a karni na 19 (19th Century),
sai wata sabuwar mahanga mai dalili sama da wadda ta gabaceta ta bullo.
Marhala ta Biyu
A marhala ta biyu ne aka samu wata sabuwar mahanga dangane da abin
da ya shafi tsarin gadon dabi'un halitta. Wannan mahanga kuwa ta
samo asali ne daga wani shahararren malami mai suna Gregor Mendel dan kasar
Jamus, wanda ya gudanar da bincike kan nau'ukan shuke-shuke da yadda ake samun
gadon dabi'u a tsakaninsu sanadiyyar "hadin-aure" da yayi a
tsakaninsu, watau "Hybridization" kenan. Ya yi gwaje-gwaje
cikin shekarar 1865 inda ya fitar da sakamakon da ke nuna cewa, akan samu gabon
dabi'un halitta a tsakanin jinsi da nau'ukan shuke-shuke, amma ba wai
cikakkiyar gado ake samu ba, sabanin ra'ayin marhalar farko da ya gabata mai
suna "Blending Inheritance." Wannan ra'ayi na Gregor
Mendel shi ake kira da: "Mendelian Inheritance." A wasu
lokuta kuma akan kira shi da suna: "Mendlism." A cikin wannan marhala
ne har wa yau aka fara kiran wannan fanni da suna
"Genetics." Wanda ya fara kiran wannan fanni da wannan
suna kuwa shi ne William Bateson, a cikin wata kasidarsa da ya gabatar a wani
taron duniya da aka yi a birnin Landan kan "hadin-aure" tsakanin
shuke-shuke, watau 3rd International Conference on
Plant Hybridization, cikin shekarar 1906. A wannan marhala, abin da
tsarin bincike ya tabbatar na tsarin gadon dabi'un halitta duk a kan
shuke-shuke ne, ba a gudanar da wani bincike na musamman ba kan kwayoyin
halittar dan adam, dangane da abin da ya shafi fannin. A halin yanzu
wannan shi ne bangaren nau'in ilimin gadon dabi'un halitta da ake kira;
"Classical Genetics."
Marhala da Uku
A shekarar 1911 kuma sai bincike kan bangaren kwayar halittar da ke
dauke da dabi'un halitta ya kunno kai. Wanda ya fara bincike kan wannan bangare
kuwa shi ne Thomas Hunt, inda ya gano cewa lallai bangaren Ma'adanar Dabi'ar
Halitta (Chromosome) ne ke dauke da wadannan dabi'un halitta masu haddasa gadon
dabi'un halitta a tsakanin halittu masu rai. A shekarar 1913 kuma
bayan shudewar Thomas Hunt, sai wani dalibinsa mai suna Alfred Sturtevant ya
tabbatar da cewa lallai Dabi'un Halitta (Genes) suna tsare ne, daya na bin
daya, a jere a cikin wannan bangare na Ma'adanar Dabi'ar Halitta (Chromosome),
ba wai a cakude suke ba ko a hargitse. Bayan wannan hobbasa da
Thomas da dalibinsa Alfred suka yi, sai kuma wata muhawara ta kutso
kai, cewa: tunda Dabi'un Halitta (Genes) ne ke taimakawa wajen samar da
Sinadaran Kara Kuzari (Cell Protein) ga Kwayar Halitta (Cell), shin, tsakanin
wannan sinadaran karin kuzari da Ma'adanar Dabi'ar Halitta (Chromosome), wanne
ne daga cikinsu ke haddasa Gadon Dabi'un Halitta a tsakanin halittu masu rai?
Wanda ya fara kokarin gano hakan kuwa shi ne Frederick Griffith a
cikin shekarar 1928. Sakamakon bincikensa ya gano masa wani tsarin juyin
yanayin da ke faruwa a cikin Ma'adanar Dabi'ar Halitta (Chromosome)
ne. Wannan tsarin juyin yanayi, wanda Frederick ya kira da suna:
"Transformation", wani mataki ne daga cikin matakan da ke samuwa
kafin Gadon Dabi'un Halitta (Inheritance) ya samu a cikin Kwayar Halitta
(Cell). Da aka shiga shekarar 1944 kuma sai wani gungun masana su
uku, wato: Oswald Theodore Avery, da Colin McLeod, da kuma Maclyn Mc-Carthy
suka gudanar da bincike don tantance hakikanin abin da ke haddasa wannan tsarin
juyin yanayi da Frederick ya kira "Transformation" a
baya. Sakamakon bincikensu dai ya nuna cewa, Madaukan Dabi'ar
Halitta (DNA) ne ke haddasa wannan yanayi, wanda mataki ne da ke samar da Gadon
Dabi'ar Halitta (Inheritance) a tsakanin halittu. Ba su kadai ba,
hatta gwajin bincike na musamman da Harshey da Chase suka gudanar a shekarar
1952 ya sake tabbatar da hakan. A nasu bangaren kuma, masana James
D. Watson da Francis Crick sun gudanar da bincike na musamman kan wannan
Madaukan Dabi'ar Halitta (DNA), inda suka gano tsarinsa, da kuma cikakkiyar siffarsa. Wannan
bincike nasu sun gudanar da shi ne a shekarar 1953. A cikin shekarar
1955 kuma aka sake gudanar da wani bincike kan Madaukan Dabi'ar Halitta (DNA),
inda aka gano tasirinsa wajen samar da Sinadaran Kara Kuzari (Protein), wanda
ke taimakawa wajen gina Tambarin Dabi'ar Halitta (Genetic Code) na kowane
halitta. Wadannan su ne al'amura muhimmai da suka faru a marhala ta
uku cikin wannan fanni na ilimin Tsarin Gadon Dabi'un Halitta (Genetics).
Marhala ta Hudu
Marhala ta hudu, wadda ke cike da ci gaba a fannin kimiyya da
kere-kere, ita ce marhala ta karshe da wannan fanni na tsarin Gadon Dabi'un
Halitta ya kutsa. Wannan marhala ta faro ne cikin shekarar 1977, lokacin
da wani masani mai suna Frederick Sanger ya gudanar da bincike na musamman kan
yadda Madaukan Dabi'ar Halitta (DNA) ke jera Dabi'un Halitta (Genes) a kwayar
halittar rayuka. Sakamakon wannan bincike, wanda Malaman kimiyya ke kira:
"DNA Sequencing," yana da muhimmanci matuka a wannan fanni na
ilimi.
Bayan sakamakon wannan bincike, a shekarar 1983 kuma sai ga Kary
Banks Mullis, wani masani ne kan wannan fanni, inda bayan tsawon lokaci yana
gudanar da bincike ya fitar da sakamako kan yadda ake iya tsame sinadarin
Madaukan Dabi'ar Halitta (DNA) daga sauran sinadaran da ke mahallin Ma'adanar
Dabi'ar Halitta (Chromosome). Wannan wani mataki ne da ya samar da
karin sanayya kan Dabi'un Halitta (Genes). Wannan sabon tsari da Kary Banks ya
hankado shi ake kira "Polymerase Chain Reaction." Daga nan
aka ci gaba da gudanar da bincike na kwakwaf cikin wannan fanni, ta hanyar
amfani da sababbin na'urorin binciken kimiyya da fasahar sadarwa da kere-kere,
wajen gano wasu al'amura da suka buya a lokutan binciken shekarun baya. Babban
hobbasa da aka yi wajen tantance matakin da ake ganin shi ne na karshe wajen
bunkasa wannan fanni shi ne sakamakon binciken da ya tabbata a shekarar 2003,
shekarar da aka kammala bincike kan adadin Dabi'un Halitta da ke cikin kwayoyin
halittar jinsin dan adam baki daya. Wannan aikin bincike na musamman wanda aka
masa suna THE HUMAN GENOME PROJECT, hukumar Kiwon Lafiyar Kasar Amuka
da Kamfanin Binciken Dabi'un Halitta mai suna Celera Genomics ne suka
dauki nauyin aiwatar da shi. A sakamakon binciken ne aka tantance
cewa jinsin dan adam na dauke ne da adadin Dabi'un Halitta (Genes) tsakanin
20,000 zuwa 25,000. Har wa yau sakamakon binciken ya dada tabbatar
da cewa, lallai fahimtar yadda wadannan Dabi'un Halitta ke jituwa ko kasa
jituwa a tsakaninsu ne zai taimaka wajen samar da waraka ga cututtukar da ke
addabar al'ummar duniya baki daya. Wannan hobbasa ne ya fitar da
abin da na kira: "Taswirar Tambarin Dabi'ar Halitta," wato "The
Human Genome."
Wadannan su ne shahararrun marhaloli hudu masu muhimmanci da wannan
fannin ilimi ya kutso ta cikinsu. Duk wani abin da ya danganci
wannan fannin ilimi da ba a ambace shi ba, to, z aka samu ya samo asali ne daga
gare su.
Rabe-raben Fannin Dabi'u da Siffofin Halitta
Kamar sauran fannonin ilimi da muke dasu a yau, Malamai sun kasa
wannan fanni na binciken dabi'u da siffofin halitta zuwa kashi
hudu. Sun yi hakan ne ta la'akari da fadinsa, saboda fanni ne mai
fadi sosai, musamman a wannan zamani mai dauke da ci gaba a fannin kimiyya da
kere-kere, wanda kuma ya dada taimakawa wajen kawo irin ci gaban da ba a samu
ba cikin shekaru 100 da suka gabata. Dalili na biyu kuma shi ne,
saboda sawwake tsarin daukan ilimin da kuma gudanar da bincike a cikinsa don
fa'idantar da al'umma. Dalili na uku kuma shi ne, don bambance asalin wannan
fanni, da irin nau'in binciken da ya gudana a zamani ko marhala ta farko, da
irin binciken da yake gudana a wannan zamani ko marhala da muke
ciki. Wannan shi zai taimaka wa malaman tarihi kan tsarin bincike a
fannin dabi'u da siffofin halitta, don bambacewa tsakanin abin da aka yi a baya
da wanda ake yi a halin yanzu. Ga takaitaccen bayani nan kan kowanne
daga cikin wadannan rabe-rabe guda hudu da ake dasu a halin yanzu.
Fannin 'Yan Mazan Jiya
Wannan shi ne bangaren binciken ilimin dabi'u da siffofin halitta
mai lura da asalin fannin baki daya. Shi ne bangaren da ke lura da dukkan
al'amuran da suka faru a marhala ta farko, kamar yadda bayanai suka gabata a
sashen baya. Kuma shi ne bangaren da dukkan malamai suka yarda ya fi
sauran inganci dangane da asali da kuma tasirinsa. Wannan reshe ne
ke bincike kan siffofin halitta na bayyane, wato Phenotype, da
yadda kwayoyi halitta ke hayayyafa a tsakaninsu, wato Cell
Division, don haifar da gadon dabi'u da siffofin halitta daga iyaye
zuwa 'ya'ya ko zuriyarsu. Daga cikin abin da wannan reshe na ilimi
ya gano har wa yau, akwai dalilan da ke sa a samu bambancin jinsi wajen haihuwa
sanadiyyar wasu dalilai na zahiri, kamar yanayin mahalli da tsarin jima'i a
tsakanin jinsi biyu, da dai sauransu.
A wannan fanni ne aka gano tasirin mahalli wajen samar da jinsin
halitta. Misali, dabbobi irin su Kada, da Kunkuru, duk an gano cewa
irin mahallin da suke yin kwai a cikinsa ne ke tabbatar da samuwar namiji za a
haifa ko mace. Sabanin jinsin dan adam, wanda hakan ke samuwa
sanadiyyar dalilan dabi'ar halitta na boye da ke can cikin Madaukan Dabi'ar
Halitta (Chromosome). Bayan 'yan adam hatta dabbobi da shuke-shuke,
ta sanadiyyar wannan fanni ne aka gano irin tasirin mahalli da dabi'un halittar
da ke cikin kwayar halittarsu wajen samar da yabanya, ko yawan hayayyafa da dai
sauransu.
A wannan reshe ne har wa yau ake gudanar da bincike kan dalilan da
ke haddasa samuwar cututtuka daga iyaye zuwa 'ya'yansu, sanadiyyar bambanci ko
tangardar da ake samu a tsakanin sinadaran dabi'un halitta. Wannan
fanni ne ke tabbatar da tsarin gadon dabi'u da siffofin halitta a zahiri, watau
Genetic Inheritance kenan. Kuma shi ne fannin farko da ake takama da
shi a duniya baki daya. Dukkan sauran fannonin suna dogaro ne a gare
shi wajen gina abin da suke gudanar da bincike a kansa. Shi yasa
hatta a Jami'o'in da suke karantar da fannin Gadon Dabi'u da Siffofin Halitta
(Genetics), wannan shi ne reshen farko da ake fara karantar da dalibai kafin a
haura zuwa wani reshe da ke dogaro kan tsarin binciken kimiyya da fasahar
zamani.
Idan muka yi la'akari da hadisan da muka kawo a baya, inda Manzon
Allah ke tabbatar da bambancin launin jiki, da bambancin jinsi wajen saduwa
tsakanin namiji da mace, za mu fahimci cewa duk sun kunshi abubuwan da wannan
reshe ne ke bincike a kansu. Haka sakamakon binciken babban masanin
kimiyyar nan mai suna Gregor Johann Mendel dan kasar Jamus da bayani ya zo
kansa a baya, inda ya tabbatar da samuwar gadon dabi'u da siffofin halitta a
tsakanin kwayoyin halittar shuke-shuke da mutane, duk yana dogaro ne kan wannan
reshe. Haka sauran ra'ayoyin magabata kan fannin kimiyya da suka zo
kafin rubutun tarihi, duk da cewa wasunsu a cike suke da kurakurai, amma galibi
bayanansu na ishara ne zuwa ga abin da wannan reshe ke
karantarwa. Don haka ake kiran wannan reshe da suna "Classical Genetics"
a Turance, watau "Fannin Ra'ayin Mazan Jiya." Wasu sunayen
da ake
kiransa da su sun hada da "Mendelian Genetics" da kuma
"Transmission Genetics."
Fannin Sinadaran Dabi'ar Halitta
Fanni na biyu shi ne wanda ke dogaro kai tsaye ga tsarin bincike
kan yanayin sinadaran dabi'ar halitta, watau "Molecules." Abu
na farko da wannan reshe ke bincike kansa shi ne asalin "Dabi'ar
Halitta" (Genes) da ke cikin kwayar halittar kowace rai. Aikin
wannan fanni ne gudanar da bincike kansa, da yanayinsa, da tsarinsa. Shi
yasa wasu ke danganta wannan reshe da ga tsarin binciken dabi'ar halitta na
zamani, wato kishiyar reshen da ya gabata kenan.
Bayan asalin dabi'ar halitta, wannan reshe na gudanar da bincike
kan Ma'adanar Bayanan Dabi'ar (DNA), da Sinadaran Kara Kuzari da ke cikin
kwayar halitta (Cell Protein), wadanda ke sana'anta kowane kwayar dabi'a da
siffar halitta a cikin kowane mai rai. Wannan reshe ne ke bayanin
yadda dan adam ke samuwa daga kwayar halitta (Cell) zuwa yadda yake a halin
yanzu. Reshen ne ke lura da tsarin gudanuwar jijiyoyi da kiftawar
idanu da kuma dabi'ar jure cututtuka, duk a mahangar dabi'ar halitta.
Daga cikin aikin wannan reshe har wa yau akwai bincike kan yadda
dabi'un halitta ke bayyana kansu da siffofinsu ga kowace halitta, watau
"Genes Expression." Sannan yana bincken dalilan samuwar
cututtuka irinsu Sankara (Cancer) ta hanyar gamayyar dabi'un halitta, da yadda
ake magance mantsalolin tangardar dabi'ar halitta (Genes Therapy) da kuma
kwaskwariman dabi'ar halitta ta hanyar kimiyya da fasahar zamani (Genetic
Engineering).
Wannan reshe, a takaice, shi ake kira "Molecular
Genetics" saboda tsananin dogaronsa kan asalin sinadaran da ke samar da
dabi'un halitta, da kuma amfani da tsari ko hanyoyin binciken zamani don
tantance al'amuran da suka danganci fannin baki daya.
Fannin Bambancin Dabi'u
Reshe na uku shi ne fannin Bambancin Dabi'u. Wannan
fanni ko reshe yana bincike ne kan bambance-bambancen da ake samu tsakanin
nau'ukan halittu sanadiyyar kebantuwarsu, ko yanayin mahallinsu, ko yanayin
jima'i a tsakanin jinsinsu, ko kuma dabi'un rayuwarsu. Ba nan kadai
ba, fannin na lura da wadannan abubuwa ne tare da karkasa nau'ukan da suka
danganci junansu a mahangar binciken ilimin dabi'un halitta.
Wannan reshe ne ke taimakawa wajen gano kamaiceceniya tsakanin
nau'ukan dabi'un halittar mutane ko dabbobi, da yadda za a samar da magungunu
ko hanyoyin waraka a likitance, don magance sauyin dabi'un halitta (Gene
Mutation) da ke faruwa ko samuwa a cikin Ma'adanar Dabi'ar Halitta, wato
DNA. Bayan gano wadannan bambance-bambance, sai a rarraba su
rukuni-rukuni, don tantance abin da ke hada alaka a tsakaninsu. Idan
aka samu wasu matsaloli da suka danganci kebantuwarsu, sai a yi tunanin yadda
za a samar da waraka.
Don tabbatar da fahimta a kwakwalwar mai karatu, sun kawo misali da
daya daga cikin dabbobin dajin Afirka mai da aka si sani da suna
"Cheetah", wacce Allah ya hore mata kudurar gaugawa, da zafin nama,
da juriyar gudu na tsawon lokaci, da kaifin basira wajen fahimtar abin da zai
cutar da ita. Da malaman ilimin dabi'a da siffofin halitta suka
gudanar da wani bincike na musamman kan Dabi'ar Halittar wannan dabba don fahimtar
abin da ke kebance ta daga sauran dabbobi masu dabi'a irin
nata. Sakamakon binciken ya nuna cewa jinsin wannan dabba ta
"Cheetah" dabi'un halittarsu duka iri daya ne. Sabanin
sauran dabbobi da ake samun bambancin dabi'un halitta a tsakanin jinsi daya. Da
wannan malaman ilimin fannin dabi'ar halitta suka tabbatar da cewa akwai
barazanar karewa da ke fuskantar jinsin wannan dabba. Suka ce da
zarar an samu wata cuta wacce ke iya kashe su nan take, ba za a iya samun
hanyar ceto jinsin nasu daga karewa ba. Saboda babu inda za a samu
dabi'ar halitta irin tasu da za ta dace da dabi'unsu na zafin nama, da kuzari,
da kuru, da kaifin basira wajen kaucewa daga abokin gaba, sannan da hikimar
nemo abinci da sauransu. Wannan fanni dai a yanzu shi ake kira da
suna "Population Genetics."
Fannin Alaka Tsakanin Dabi'ar Halitta da Siffofi
Wannan shi ne fanni ko reshe na karshe, wanda aikinsa shi ne
gudanar da bincike kan alakar da ke tsakanin dabi'ar halitta (Genes) da kuma
siffofin halitta na bayyane. A wannan fanni ne ake fahimtar da
alakar da ke tsakanin siffar halitta – misali, saurin tafiya ga mutane, ko
dabar iya nemo inda abu yake ga karnuka, ko yawan kwai ga tsuntsaye da
jinsinsu, ko kuma dabi'ar yawan yado da yabanya ga shuke-shuke ko tsirrai da
bishiyoyi. Wadannan dukkansu dabi'u ne da siffofin halitta da suke
kebance wasu jinsin halittu, ta wannan reshe ake gano alakar da ke tsakanin
wadannan dabi'u na halitta da siffofinsu.
Masana a wannan fanni ko reshe ne amfani ne da ka'idar
"Quantitative Trait Loci", wato "TQL" a
gajarce. Da wannan ka'ida ne suke amfani wajen fahimtar wannan
alaka, musamman wajen gano yabanya a shuke-shuke da bishiyoyi, da kuma yawan
'ya'ya ko ingancin rayuwa ga dabbobi. Wannan fanni shi ake kira
"Quantitative Genetics," kuma fanni ne mai cike da sarkakiyar lissafi
da hasashe a fannin kimiyyar lissafi.
Muhimmanci Ga Al'umma
Fannin gadon dabi'u da siffofin halitta yana da fadi sosai, kuma
yana da sarkakiya matuka. Amma duk da haka, babu wani fanni mai ci
sosai yanzu a duniya, daga cikin nau'ukan bangarorin ilimin da ke karkashin
fannin likitanci, irin wannan fanni. Wannan tasa yake da muhimmanci
sosai, saboda tasirinsa kan kusan dukkan halittar da ke bayan kasa baki
daya. Wannan sashe zai dubi muhimmancin da wannan fanni yake da shi
ne, da fa'idojin da yake samarwa ba ga likitoci kadai ba, wajen sawwake musu
ayyukansu, har ga kowa da kowa.
Cututtuka "Marasa" Magani
Daga cikin ci gaban da aka samu da bayyanar wannan fannin ilimin
likitanci shi ne, da yawa daga cikin cututtukan da a baya aka kasa samun waraka
daga gare su sanadiyyar yanayinsu da tsaurinsu wajen karban magani, yanzu an
gano cewa ba cututtuka bane wadanda ake iya warkar da su ta hanyoyin da aka bi
a baya, saboda irin asali da yanayin da ke haddasa su. Cututtuka irin su cutar
Asma, da Sankara (Cancer), da cutar Siga (Diabetes), da na Hauhawan jini
(Hypertension), duk suna cikin cututtukan da aka ta bugawa da su a baya wajen
magani, ba tare da samun wani natija mai fa'aida ba. Amma sanadiyyar
bunkasar wannan fannin ilimi, yanzu an gano cewa cututtuka ne masu alaka da
dabi'u da siffofin halitta da mutum ke iya gadonsu daga wajen iyaye ko
kakanninsa. Wannan tasa aka sauya mahanga wajen magance su, daga
amfani da kwayoyi ko canza tsarin rayuwa wajen rage damuwa da bakin ciki, zuwa
la'akari da tsarin kwayoyin halitta da gwajinsu ga masu niyyar aure, don kauce
wa haifar 'ya'ya masu kamuwa da ire-iren wadannan cututtuka a gaba.
Wannan shi ne abu mafi muhimmanci na farko da wannan fanni ya gadar
wa al'umma a yanzu. Da zarar an samu wata cuta da ta bayyana tana ta ta'asa
cikin al'umma, an yi magani an kasa magance ta, nan take sai a debi kwayoyin
halittar wadanda abin ya shafa a yi gwaji, daga nan ana iya gano asalinta, idan
har ta danganci dabi'u da siffofin halitta ne. Wannan ya dada taimakawa
gaya wajen habaka bincike mai inganci a fannin likitanci, da zummar neman
hanyoyin magancewa tare da hana yaduwar cututtuka da dama wadanda a baya suka
gagari masana harkar lafiya.
Habaka Harkar Noma da Samar da Abinci
A zamanin baya manoma kan yi wasu 'yan dabaru wajen kokarin samar
da sabon irin shuka na abinci ta hanyar "hadin-aure", watau
"Crossbreeding," tsakanin jinsin shuka guda daya ko
daban-daban. Wannan wata hanya ce da duk aka amince cewa ta
sanadiyyarta an samu habaka tsarin noma da hanyar samar da sabon nau'in irin
abinci. Sai dai a yanzu an fi amfani da wannan hanya wajen aiwatar
da hakan a saukake, musamman a kasashe masu ci gaban tattalin arzikin
kasa. Domin a yau akan dauki nau'in dabi'ar halittar wata shuka ko
wata dabba, a sanya shi cikin kwayoyin halittar wani irin shuka daban, don
gadar wa wannan irin shuka wasu dabi'un da ake bukata.
Misali, a kasashe masu fama da farin dango, ko kwari masu lalata
shuke shuke, a kan yi amfani da kwayoyin halittar da ke dauke da samfurin
sinadarin da ke kashe kwari ko wanda suka tsana, sai a shigar da shi cikin
kwayoyin halittar irin shukan da ake bukata. Da zarar an shuka ta
tsiro, duk kwarin da suka nufaci wannan shuka nan take za su
mutu. Haka a kasashen da ke fama da tsananin sanyi, wanda hakan ke
yin mummunan tasiri kan shuke-shuke, sai a dauki dabi'un halittar wani nau'in
kifi da ke karkashin teku, a shigar da shi cikin kwayoyin halittar wannan irin
shuka. Da zarar shukar ta tsiro, duk yadda sanyi ya kai da kasaita,
ba zai yi mummunar tasiri a kan ta ba. Haka za su tsira, su yi
girma, har su fitar da kwaya sannan a girbe.
Haka idan ana bukatar yabanya mai kyau, ko zaki daga wani irin
shuka, ko kamshi, ko kuma dadi daga wani nau'in abinci da ake so, sai a debi
dabi'un halittar wata shuka mai zaki makamanciyar wacce ake so, a shigar cikin
shukar da ake son shukawa. Da zarar ta isa girbi, dukkan siffofin
halittar da ake son ta siffafu da su nan take za ta fito da su. Haka
abin yake a fannin dabbobi da kifaye ko dabbobin ruwa, da dai
sauransu. Dukkan wannan ya samu ne ta sanadiyyar inganta bincike kan
fannin dabi'u da siffofin halitta a kimiyyance.
Inganta Fannin Tsaro
Fannin gadon dabi'u da siffofin halitta ya samar da hanya mafi
sauki wajen gano masu laifi musamman a kasashen da suka ci gaba, inda aka fi
aikata miyagun ayyuka sosai babu kakautawa. Gwamnatoci, ta hadin
gwiwa da likitoci suna amfani da wannan fanni wajen gano tambarin hannu da kuma
kwayoyin halittar masu laifi, don kama su da gurfanar da su a gaban
kuliya. Idan aka yi sata ko kashe kashe a wasu wurare, a kan dauki
abubuwan da aka samu a wurin, wadanda masu laifi suka bari ko suka
taba. A kan wadannan kayayyaki za a gudanar da bincike, a ciro
kwayoyin halittar da aka samu a jikinsu. Da wadannan kwayoyin
halitta ne za a gano nau'in jini, da nau'in jinsi, da nau'in dabi'ar halittar
wanda aka gano tambarin hannunsa. Tunda suna da rumbun adana bayanan
'yan kasa baki daya ta kwamfuta (National Database), nan take za a gano wanda
ke da wadannan siffofi na halitta, sannan a nemi adireshin
gidansa. Da zarar an same shi a kamo shi. Idan kuma
wadanda aka kama ne misali, sai a musu gwajin dabi'ar halitta ko gwajin
kwayoyin halitta, don tabbatar da dacewarsu da abin da aka samu a wajen aikata
laifi. Wannan hanya ce mai kyau kuma mai inganci wajen tantance wa
ya aikata me, kuma a ina?
Tabbatar da Nasaba tsakanin Al'umma
Wannan abu ne mai muhimmanci da fannin dabi'u da siffofin halitta
ya samar a duniya. Tabbas a baya al'ummomi daban-daban sun samar da
hanyoyin tabbatar da nasaba a tsakaninsu. Wasu al'ummomin suna
amfani ne da tsarin rubutu, da tantance duk wadanda aka haifa a kowace shekara,
da nasabarsu, da danginsu. A wasu al'ummomin kuma suna amfani da dattawa
ne, wadanda Allah ya hore musu kaifin haddace abubuwa, don tabbatar da nasabar
jama'a. Sai dai wani abu sabo da wannan fanni ya kawo shi ne, idan
rikici ya sarke tsakanin jama'a kan nasabar wani; wannan na cewa "da na
ne", wancan na cewa "nawa ne," ta hanyar daukan samfurin
kwayoyin halittarsu kadai ana iya gane waye ke da dan daga cikinsu. Wannan
hanya ce mai sauki. Wanda in da a zamanin baya ne, sai an nemo masana kan sanin
bambance-bambancen tsarin jiki, da murya, da fuska, da girman yatsun kafa da na
hannaye, da dai sauransu. Amma a yau sai dai kawai a debi jininka,
ko yawunka, ko kuma numfashinka, da na wanda ake son riskar da nasabar gare
shi, a yi gwaji. Wannan ita ce hanya mafi inganci wajen tantance
nasaba da dangantaka, kuma malaman musulunci sun yi amanna da wannan
tsari. Shi yasa Shehu Usmanu ibn Fodio, Mujaddadi, Allah rahamshe
shi yake cewa, wajibi ne ga kowace gwamnati ta kafa hukumar lura da nasabar
al'umma, don kada a samu cakuduwa, wanda hakan na iya haddasa rikici mai girman
gaske, musamman wajen gado, da dangantaka, da suna, da kuma neman hakkin dan
uwa.
Tabbatar da Kariya daga Cututtuka
Alkaluman bayanai sun tabbatar da cewa a yanzu akwai mutane miliyan
200 da suke fama da cututtuka masu alaka da dabi'u da siffofin halitta; ma'ana,
sun gado wadannan cututtuka ne daga iyayensu, ko dangin iyayensu, ko
kakanninsu, ta hanyar kwayoyin halitta a lokacin haihuwa. Bayyana da
bunkasar wannan fanni ya taimaka wajen samun kwararru masu baiwa jama'a
shawarwari kan abin da ya kamata su yi kafin auratayya tsakaninsu da
mata. Ko kuma ga wadanda suka riga suka yi aure, akan shawarce su da
aiwatar da gwajin kwayoyin halitta (Genetic Test), don tabbatar da cewa babu
cin karo mai haifar da cututtuka ga 'ya'ya idan an tashi haihuwa, a tsakanin
kwayoyin halittar ma'auratan biyu. Wannan yana da muhimmanci sosai, hatta
malaman musulunci a wannan zamani suna kira da lallai ya kamata ga masu niyyar
aure su yi wannan gwaji, don tantance tsari da kintsin kwayoyi da dabi'un
halittar jikinsu. Idan akwai cin karo, likitoci kan bayar da shawara
kan abin da ya kamata su yi bayan auren ko kafin auren. Idan rabuwa
ce, su rabu shi yafi alheri, tunda ba a riga aka daura auren ba. Idan
kuma wasu magunguna ne za a basu, duk sai a basu a lokacin.
To amma galibi musamman a kasashe masu tasowa, ba mu cika damuwa da
hakan ba, saboda rashin wayar da kai daga wajen hukuma, ko kuma muna tsoron
kada a samu tangarda, alhali ba za mu iya rabuwa da wacce muke so
ba. A nan, fannin gadon dabi'u da siffofin halitta ya samar da
kariya mai muhimmanci wajen kare ma'aurata gadar wa 'ya'yan da za su haifa wasu
cututtuka, wadanda da a ce an yi auren ba tare da gwaji ba, suna iya afkawa
cikin lalura mai girman gaske. Domin lura da 'ya'ya masu ire-iren wadannan
cututtuka (kamar Sicklers misali), abu ne mai matukar wahala wajen kudi, da
lokaci, da juriya, da hakuri. Akwai baiwar Allah da na sani da Allah
ya jarrabe ta da nau'in cuta mai alaka da dabi'a da siffofin
halitta. Sai ka tausaya mata. Idan a makaranta take, ba a
mako uku mai kyau sai an dawo da ita gida. Wasu lokuta ta sume, wasu
lokuta a kasa gane kanta. A takaice dai ba ta da iko kan sarrafa
lokutanta. A kowane lokaci tana iya kamuwa da rashin lafiya.
Tantance Asali da Tarihin Al'ummomi
Ta hanyar fannin gadon dabi'u da siffofin halitta an tantance
al'ummomi da dama, an kuma gano asalin wasu da dama. Sannan an
fahimci dalilan da suka sa ake samun wasu launukan jiki masu sabanin na jama'a,
ga wadanda suke zaune a wuri daya. Misali, akwai wasu kabilu a kasar
Amurka da ake kira "Hopi," can wajen jihar Arizona. Mutane
ne masu bakin gashin kai, da bakin fatar jiki, da bakin gudan
idanu. Suna cikin rayuwa sai kawai suka fara haifar wasu 'ya'ya masu
fararen fatan jiki sal, masu fararen gashin kai sal, masu launin idanu sabanin
irin na iyayensu. Masu irin wannan nau'in halitta su ake kira
"Zabya" ko kuma "Albinos" a turance. Ana fara
haka sai masana tarin kasar Amurka suka ce ai wata al'umma ce
daban. Amma da fannin ilimin gadon dabi'u da siffofin halitta ya
bayyana, sai aka gano cewa ba wai wata al'umma bace daban, tangardar dabi'un
halitta aka samu (Genetic Disorder) tsakaninsu da iyayensu wajen
halitta. Abin da ke faruwa shi ne, daga cikin sinadaran halitta da
ke samar da dan adam akwai sindarin da ake kira "Melanin," wanda ke
samar da launin fatar jiki, da launin idanu, da launin gashin kai da na jiki,
da duk inda wani launi yake a jiki. To amma idan aka samu matsala wajen
halitta ya zama akwai rashin dacewa tsakanin dabi'un halitar uba da na uwa a
bangaren wannan sinadarin Melanin, sai a haifi yaro fari sal, komai na jikinsa
fari, babu wani launi da zai danganta shi da mahaifinsa ko
mahaifiyarsa. Wannan sakamakon bincike ya samu ne ta hanyar bunkasar
fannon gadon dabi'u da siffofin halitta.
Fahimtar Gamewa da Karfin Kudurar Ubangiji
A karshe, bayyanar wannan fanni da irin tasirinsa wajen bunkasa
bincike don fahimtar tsarin halitta ya dada taimaka wa musulmi musamman wajen
fahimtar gamewa da karfin kudurar Allah madaukakin sarki. Domin idan
aka nuna maka kwayar halitta za ka yi mamakin yadda za a ce maka ta haka ne dan
adam ke samuwa. Daga launin idanunsa, zuwa tsawon yatsunsa, da
gajartar jikinsa, da kaurin hancinsa, da laushin fatar jikinsa, da tsawon
gashin jikinsa, da tsarin hakoransa, da tsarin lebbansa, da yanayin tafiyarsa,
da yanayin fahimtarsa, da yanayin natsuwarsa, da kimar hankalinsa, da fadin
iliminsa, da fahimtar muhallinsa, da nau'in farin cikinsa, da saurin fushinsa, da
jinkirin fahimtarsa, da dai sauransu. Wannan duk yana nuna mana iya
girma da fadin kudurar Allah ne, wajen kwarewa da halitta, da hikima, da kuma
tassarafi cikin halittarsa baki daya. Albarkokin Allah sun yawaita, wanda
shi ne mafi kyawon masu halitta.
Matashiya
Wannan shi ne kashi na 6 a jerin kasidun da muka fara kawowa a
watannin baya. Muna dada tunatar da masu karatu cewa duk mai rubuto
tambaya, to, ya sa suna da adireshinsa. Idan babu cikakkiyar suna da
adireshi ba za a buga sako ba. Sai a kiyaye. Bayan haka,
ina sanar da masu karatu musamman wadanda ke garin Katsina, cewa ranar Asabar,
5 ga watan Janairu, zan zo garin Katsina don gabatar da lacca mai taken:
"Rayuwar Matasa a Shafukan Sada Zumunta na Intanet," wanda kungiyar
Tsangayar Alheri ta gayyace ni. Za a yi taron ne a Makera Hotel da
ke hanyar Daura, a Katsina.
Tallafi Daga Fannin Kwamfuta da Sadarwa
Kamar yadda mai karatu ya karanta a baya, wannan fanni na Tsarin
Gadon Dabi'u da Siffofin Halitta, wato Genetics, fanni ne da
ke saurin habaka, duk da tsauri da tsananin tsadar bincike da fannin ya
siffantu da su. Daga cikin dalilan da suka haddasa wannan ci gaba a
cikin shekarun da basu wuce ashirin da biyar ba, akwai ci gaba a fannin sadarwa
da kwamfuta, ko kuma fannin sarrafa bayanai dai a takaice, wato Information
Technology kenan.Wannan a fili yake. Domin duk wanda ya
dubi tsarin gudanar da bincike a wannan fanni, ya san kwarin idanu, da kaifin
gani kadai ba su isa su taimaka wa fannin ci gaba ba, sai da tallafin ci gaban
kimiyyar sadarwa da kere-kere. Domin dukkan sinadaran da ake gudanar
da bincike a kansu ba abubuwa bane da ake iya gani da kwayar idanu, nan take. Galibinsu
sai ta hanyar na'urar kambama abubuwa (Microscope) ake iya hangarsu, a fahimci
yanayinsu, a yi nazarin tsarinsu da abin da suka kunsa, kafin a gano duk abin
da ake son ganowa don taskance su a rubuce ko a zane.
Wannan sashe zai yi dubi ne zuwa ga wasu daga cikin shahararrun
masarrafai ko manhajojin kwamfuta da kwararru kan wannan fanni suke amfani da
su wajen tantance tsarin bincike a wannan fanni na Tsarin Gadon Dabi'u da
Siffofin Halitta (Genetics). Akwai bangarori shahararru da wadannan
masarrafai suka shafa, kuma za mu dubi nau'ukan manhajojin kwamfuta da aka gina
a cikinsu, masu amfani a babbar manhajar Windows na
kamfanin Microsoft Inc. Na farko, kwai manhajoji na
musamman a bangaren nazari da tantance yanayin Madarar Dabi'un Halitta, wato:
"Deoxyribonucleic Acid" ko "DNA" a takaice. A
bangare na biyu kuma, akwai manhajoji ko masarrafan kwamfuta da aka gina don
nazarin mahallin DNA, da sauran sinadaran da suka dangance shi, wajen fahimtar
tsarinsu da gudanar da bincike kansu. Na uku akwai manhajoji na
musamman kan nazarin sinadaran kara kuzari da ke cikin kwayar halitta,
wato: Cell Protein Analysis. Na hudu kuma sai manhajoji da aka
gina kan nazarin fannin alakar da ke tsakanin kwayoyin halitta wajen bunkasa da
habaka, ba bangaren kamaiceceniya wajen dabi'u ba kadai. Wannan
fanni kuwa shi ake kiraPhylogenetics. Duk da cewa a farko ba
mu tabo wannan fanni ba, amma ganin cewa muna nazarin manhajojin ne a jumlace,
shi yasa na kawo mana. Bayan wadannan fanno akwai wasu fannonin dai
daban.
Kafin mu ci gaba, zai dace mai karatu ya fahimci cewa, su wadannan
manhajoji na kwamfuta aikin su shi ne tantance bayanan da aka shigar musu a
rubuce, ko a tsarin hotuna, ko kuma a tsari ko yanayin zane. Sannan
bayanan na iya kasancewa ta hanyar tsarin shigar da bayanai ne, wato a rubuta
da hannu ta hanyar allon shigar da bayanai na kwamfuta, wato: Keyboard, ko kuma
ta tsarin wasu manhajoji ko na'urorin sadarwa, irin su na'urar daukan hotuna,
watoScanning Machine, ko na'urarorin tantance zafi ko adadin
sinadarai da ake amfani da su irin su: PCR Machine (wato Polymerase
Chain Reaction Analysis)da aka saba amfani dasu a dakunan binciken kimiyyar
sinadarai tun sama da shekaru ashirin da suka gabata. Ta wadanan
hanyoyi ne ake samun bayanan da wadannan manhajojin kwamfuta da za mu yi magana
a kansu yanzu ke sarrafawa, don taimaka wa likitoci ko masu bincike a wannan
fanni fahimtar alaka, da kamaiceceniya, ko bambance-bambancen da ke tsakanin
nau'ukan kwayoyin halitta da siiffofi da kuma dabi'unsu.
Manhajojin
A fannin nazarin Madarar Bayanan Dabi'ar Halitta, wato DNA, akwai
manhajar MyRAST wacce ke taimakawa wajen tantance nau'ukan kwayoyin halittar
dabbobin da kwayar halittarsu bata kai ta dan adam ba wajen bunkasa. A baya abu
ne mai wahala a iya tantace wadannan kwayoyin halitta a bangare daya, tare da
sanya musu rubutacciyar alama, cikin tsibin bayanan da ake dasu kan nau'ukan
kwayoyin halitta. Amma samuwar wannan manhaja ya taimaka matuka,
inda a rana daya, bayan tara dukkan bayanan da ake dasu kan kwayoyin halitta,
da wannan manhaja sai a tantance kowane irin kwayar halitta daban, tare da
alamar kowanne, don sawwake ayyuka da tsarin bincke. Sai manhaja mai
suna Gene Designer, wadda ke taimakawa wajen tattaro bayanan sinadaranAmino
Acid da ke kwayar halitta, da kuma sinadaran Madarar Dabi'ar Halitta a
daya bangaren, don fahimtar yadda wadannan sinadarai ke haduwa wajen samar da
kamaiceceniya tsakanin halittu ko zuri'o'i.
Sai manhajar CLC Free Workbench, wadda ke taimakawa
wajen hado bayanan da suka shafi Madarar Dabi'ar Halitta (DNA) da sinadaran
kara kuzari na kwayar halitta (Cell Protein), tare da tsara su a reshe daya,
don taimaka wa masu bincike yin fashin-baki kan alakokin da ke
tsakaninsu. Mai nazari na iya samun wadannan bayanai cikin shafi
guda, ta hanyar wannan masarrafa. Sai masarrafa mai suna Geneious,
wadda kamfanin Alexei Drummond Biomatters Ltd da ke birnin
Auckland na kasar New Zealand ya gina. Amfanin wannan masarrafa dai
shi ne taskance bayanan da suka shafi dukkan Taswirar Dabi'ar Halittar dan adam
baki daya, wato Human Genome, a cikin kwamfuta, tare da sawwake hanyoyin
mu'amala da bayanan cikin sauki. A takaice dai wannan masarrafa ko
manhaja kamar "Rumbun Bayanan Kwayoyin Halitta" ne, mai dauke da
kafofin karawa, ko ragewa, ko nemowa, ko adanawa, ko kuma tasarrafi da su baki
daya.
Akwai kuma manhajar ganin taswira da hotuna da bayanan da suka
shafi kwayoyin halitta da dukkan abin da ya dangance su, cikin
sauki. Wannan manhaja kuwa ita ce: Genome2D, wacce
aikinta shi ne budo bayanan kawai, a kowane irin siffa ko yanayi
suke. Sannan kana iya aikawa da bayanan da kake bukata cikin sauki,
zuwa wani mahallin don sarrafa su. Sai manhajar PHIRE,wanda
aka gina da tsarin gina manhajar kwamfuta mai suna Visual Bacic na
kamfanin Microsoft. Wannan manhaja dai aikinta shi ne
taimakawa wajen binciko (ta hanyar tambaya – search) nau'ukan kwayoyin halitta
masu dauke da cututtuka (Bacteriophage) da ke jerin bayanan Taswirar Dabi'ar
Halitta, tare da tare da tantance su ta yanayi da tsari mai kayatarwa ga masu
bincike ko nazari. Su wadannan kwayoyin dabi'un halitta da suka
harbu da cututtuka, ana amfani ne dasu wajen yin kwaskwariman wasu kwayoyin
halittar, don haka ake taskance bayanansu don amfanin gaba.
Akwai kuma manhajar MB DNA Analysis, wadda Mista
Oleg Simakov ya gina. Wannan manhaja dai kyauta ce, kuma amfaninta shi ne
iya tantace bayanan siffofin sinadaran kwayar halitta da ake bukata don yanke
hukunci kansu. Hakan kuwa ya hada da yanayin alakokin da ke
tsakaninsu, da girman yanayinsu, da kuma lissafin madaukan da ke cikinsu, don
tantance hakikaninsu, da dai sauran abubuwa masu gamsarwa wajen nazari da
bincike. Sai manhajar GenePalette,wacce ake amfani da
ita wajen iya tsakuro bayanan taswirar dabi'ar halitta daga rumbun adana
wadannan bayanai na kasar Amurka (GenBank Database), kan nau'ukan
kwayoyin halittar dabbobi daban-daban, tare da jero su ta yadda mai nazari zai
iya ganinsu tsaf, har ya gudanar da nau'in nazarin da yake son gudanarwa a
kansu. Akwai kuma manhajar UniPro DPview wadda
kamfaninUniPro Bioinformatics Groups da ke kasar Rasha ya
gina. Wannan manhaja na da muhimmanci ne wajen iya nemo bayanan
taswirar dabi'ar halitta, tare da tantance kamaiceceniyar da ke tsakaninsu,
sannan ta taimaka wa mai bincike wajen tsara alaka a tsakanin bayanan, ta
hanyar wasu ka'idoji da zai iya ginawa.
Bayan wadannan har wa yau, akwai manhaja mai suna SEQtools, ita
ma manhaja ce ta musamman da ake amfani da ita wajen gudanar da nazari kan
madarar bayanan dabi'ar halitta, tare da sinadaran kara kuzarin kwayar halitta
(Cell Protein), tare da jera su, da tantance bayanan da suka shafi
sinadaranEnzymes da dai sauransu. Akwai kuma
manhajar GENtle mai taimakawa wajen gyara bayanan da suka
shafi Madarar Dabi'ar Halitta (DNA), da sinadaran Amino Acid, da
lura da rumbun bayanan kwayoyin halitta, da dai sauransu
makamantansu. Sai manhaja ta karshe da za mu dakata a kanta a
bangaren nazarin madarar bayanan dabi'ar halitta (DNA) mai suna DNA
Club. Wannan manhaja aikinta shi ne yin amfani da tsarin zanen
hotuna mai inganci (Vector Graphics) wajen nazarin bayanan da
suka shafi dukkan sinadaran kwayar halitta (Cell Properties).
A bangaren nazarin zane ko hotunan da suka shafi sinadaran mahallin
Ma'adanar Dabi'ar Halitta (Plasmid Graphics), akwai manhajoji
masu mahimmanci sosai. Da farko akwai manhajar Ape Plasmid
Editor, wadda Mista Wayne Davis da ke Jami'ar Utah ta kasar Amurka ya
gina. Wannan masarrafa aikinta shi ne zanen hotunan bayanan kwayoyin
halitta da take daukowa daga Babbar Rumbun Bayanan Dabi'ar Halitta (GenBank)
don nazarinsu, da kuma tsara taswira na musamman da ake iya amfani da
masarrafar BLAST don tantance su. Wannan masarrafa
na amfani da launuka wajen tsara wadannan zane don kayatarwa. Manhaja ta gaba a
wannan fanni ita ce: pDRAW32 wadda ake amfani da ita wajen
shigar da sunayen sinadaran madarar dabi'ar halitta (DNA), tare da tantance
kusurwarsu a zanen taswirar mahallinsu. Kamfanin da gina wannan manhaja shi
ne AcaClone Software Inc.
Sai manhaja ta musamman mai suna Plasmid Processor, wadda
ake amfani da ita wajen bayyana hoton sinadaran da ke mahallin madarar dabi'ar
halitta (DNA) don yin nazarinsa a makarantun jami'o'i da sauran cibiyoyin
binciken kimiyyar sinadaran jikin dan adam. Akwai kuma
manhajar BVTch Plasmid wadda ake amfani dai ita wajen zanen
hoton taswirar sinadaran mahallin dabi'ar halitta(Plasmid Map), a
siffar tagwaye ko tilo (Double or Single Strand). Da
wannan masarrafar za ka iya yin zanen, tare da lika wa kowane bangaren
sinadarin suna ko alamar rubutu da ke nuna yanayi ko
hakikaninsa. Sai masarrafa ta karshe a wannan fanni mai suna PlasmaDNA, wadda
ta masu koyon nazari ne a wannan fanni. Tana taimakawa ne wajen
gwama nau'ukan dabi'un halitta daban-daban don samun kamaiceceniya, wato Gene
Cloning kenan. Sai kuma bayar da dama wajen taskance bayanan da suka
shafi ayyukan da mai nazari yayi kan wadannan nau'ukan dabi'un halitta. Wannan
manhaja ce mai sauki wajen ta'ammali ga dukkan mai nazari.
Kammalawa
Wadannan su ne shahararrun manhajoji da aka gina masu taimaka wa
masu nazarin sinadaran kwayoyin halitta a kimiyyance, tare da tsara su, don
kokarin samar da waraka ga galibin matsalolin da ake dasu na cututtuka masu
alaka da Tsarin Gadon Dabi'u da Siffofin Halitta a tsakanin jinsin mutane, da
wuraren da suka fito, da kuma yanayin jikinsu.
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