At: http://www.bbc.co.uk/science/genes/dna_detectives/adam_and_eve.shtml
There is neat story about the mtDNA Eve and the XY Chromosome Adam. By
these reports all men have a common male ancestor -maybe 60,000 years
ago. All women have a common female ancestor - maybe 150,00 years ago.
Then it says:
"Adam never met Eve. It might seem strange but - in genetic terms - Adam
never met Eve. They lived approximately 85,000 years apart. You might
ask how this is possible. The answer is simple. Each region of the human
genome has a different evolutionary history. It turns out there is more
than one Adam or Eve depending which part of the genome you are looking
at."
If every man in the world can trace his father's father's father back to
this "Adam", then how can there be any different father back there. I
know for a fact that only had one father and my sister only had one
mother. Ah, you say, through the paternal grandfather for me and through
maternal grandmother for sis. But that only works if the former had no
male children and the later had no female children. Otherwise, they
could back through the same chain to Adam/Eve.
Where does all the cross breeding fit in?
Something is eluding me. Can someone (say Glenn) help?
Oh, and how can we know that all of the billions on this earth have the
same mtDNA and XY-DNA anyhow?
Walt
-- =================================== Walt Hicks <wallyshoes@mindspring.com> In any consistent theory, there must exist true but not provable statements. (Godel's Theorem)You can only find the truth with logic If you have already found the truth without it. (G.K. Chesterton) ===================================
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