Modern Asians have African ancestors
Posted: Thursday, May 10, 2001
The theory that the ancestors of all modern humans came from Africa received a boost on Thursday with the publication of supporting research. Scientists based across Asia, in the US and the UK examined the Y-chromosomes of more than 12,000 people from across Asia and found no traces of any ancient non-African influence. "This result indicates that modern humans of African origin completely replaced earlier populations in East Asia," the researchers write in the journal Science.
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The main alternative explanation of human origins - that modern humans are descended from separate populations which developed in different places - is known as multiregionalism.
"This really puts the nail in the coffin of multiregionalism," R Spencer Wells, co-author of the research, told BBC News Online. The value of the new research lies in the scale of the project, he said More
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