Mthandiwe, mzalwane wethu,
Namuhla, izazi zofuzo zithole ukuthi bonke abantu basakazeke emhlabeni kusukela endaweni eyodwa, nokuthi bonke bayinzalo yomuntu wesifazane oyedwa abambiza ngegama.
Ababhali be-molecular biology u-R. Cann, u-M. Stoneking, no-A. Wilson, emibhalweni yabo, baphakamisa ukuthi u-Eve wayephila e-Afrika cishe eminyakeni engu-200,000 edlule. Umbono wabo usekelwe ekuchazeni ukuhlaziywa okuningiliziwe kwezinhlobo ze-mitochondrial DNA ezitholakala emaqenjini abantu ahlukahlukene. I-DNA etholakala kuma-mitochondria, izitho ezincane ezitholakala ngaphakathi kwamaseli, iyimolekhula eyakhiwe ngamapheya ayisisekelo angaba ngu-16,500 kumuntu. Leli molekhula lihluke kwi-DNA esenukleusini ngokohlelo. B
Lapho kwakhiwa ishadi elibonisa ubudlelwano phakathi kwalezi zinhlobo, izifundo zembula ukuthi umuntu ngamunye unohlobo lwe-DNA ye-mitochondrial yokhokho. Ngakho-ke, kuye kwafakazelwa ngokwe-genetic ukuthi bonke abantu abaphila emhlabeni bazalwa kumuntu oyedwa.
Ngokohlaziyo lwakhe, uCann wathola ukuthi i-DNA ye-mitochondria ivela kumuntu wesifazane oyedwa.
Umbono wokuthi izinhlanga zanamuhla zabantu zabelana ngokhokho oyedwa, usekelwe kakhulu ocwaningweni oluqinisekisiwe lwezinto eziphilayo, kanti futhi kuye kwabonakala ukuthi imodeli yezinguquko zokuziphendukela kwemvelo ezingahambisani nalo mbono zisekelwe kangakanani ekucabangeni. U-Gould, isazi se-paleontology esidumile saseHarvard, uyakuhlola kanje lokhu okutholwe yisayensi yezinto eziphilayo:
Akukho kungabaza ukuthi indlela yengqondo iyodwa…
Ngiyabingelela ngithandazela…
UbuSulumane Ngemibuzo
