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Politics : Formerly About Advanced Micro Devices -- Ignore unavailable to you. Want to Upgrade?

To: tejek who wrote (247480)8/25/2005 12:40:51 PM
From: combjelly  Read Replies (2) | Respond to of 1571976
 
"I still don't understand why they think human life started in only one or two places and then spread to other continents."

Because the mitochondrial DNA for everyone outside of Africa is more or less the same. Which implies that they have a common female ancestor. There is more variability in Africa itself. Which means non-African populations came from a relatively small group.

This is called the Out of Africa or Eve Hypothesis.



To: tejek who wrote (247480)8/25/2005 2:50:42 PM
From: RetiredNow  Read Replies (1) | Respond to of 1571976
 
Maybe it did and maybe the racial divisions we see today are based on how different humans evolved, even though they are sufficiently the same to be part of the human race, because they interbred.


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