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From:
Subject: Re: [DNA] Two Paleolithic Y groups in Europe Before the Third/Neolithic
Date: Tue, 3 Sep 2002 18:42:59 EDT
In a message dated 9/3/02 3:03:06 PM Pacific Daylight Time,
writes:
> when their husbands and sons were killed. As for Annie's question about
> those who crossed the Red Sea 80,000 years ago (has this hypothesis
> generally been accepted?), there might have been 2, 3 or two dozen distinct
> y-chromosome lines that made the crossing,
About 74,000 years BP a mega-volcano named Toba put out the lights in most
areas of the world where humans lived. Some people have speculated that
because of Toba only a few humans survived. Maybe a few hundred living men
were left on Earth and they were not randomly dispersed. If this theory is
correct Toba made modern humans an endangered species and created a genetic
bottleneck.
Since some men don't have sons to pass on a Y I can see why some lines end.
Grant
"The nice part about living in a small town is that when you don't know what
you're doing, someone else does." -- Unknown,
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