Do all human beings have a single oldest ancestor (a man and a woman), or were there were many ancestors at the same time at different places on earth? This article sheds some light. Is there another authoritative report released more recently?
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2http://biology.stackexchange.com/questions/7184/what-is-a-mitochondrial-eve-and-y-chromosomal-adam covers much of the same material. – kmm Apr 12 '13 at 18:21
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Isn't that Adam? ;) – Bitwise Apr 13 '13 at 23:34
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1Possible duplicate of What is a Mitochondrial Eve and Y-chromosomal Adam – Mr. Bultitude Jun 09 '17 at 19:07
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1This is not a duplicate. The MRCA is different from mtEve and YcAdam. – canadianer Jun 10 '17 at 01:29
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You are talking about the mitochondrial eve and the chromosome Y adam. At some point there must be just one pair, though historically the evidence can be lost if there is a near complete extinction event. Current evidence for eve points to SE Africa.
