Y-chromosomal Adam - Wikipedia, the free encyclopedia:
In human genetics, Y-chromosomal Adam (Y-MRCA) is the patrilineal human most recent common ancestor (MRCA) from whom all Y chromosomes in living men are descended. Y-chromosomal Adam is thus the male counterpart of Mitochondrial Eve (the mt-MRCA), the matrilineal human most recent common ancestor, from whom all mitochondrial DNA in living humans is descended, although they lived at different times.
By analyzing DNA from people in all regions of the world, geneticist Spencer Wells has concluded that all humans alive today are descended from a single man who lived in Africa around 60,000 years ago.
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