Hello Glenn and Marcio,
Ignore this last post (below). I did some more "surfing" on the web and
got my questions answered. It may be a surprise to me, but that appears
to be what happened. Amazing!
Walt
Walter Hicks wrote:
>
> Many thanks to Marcio and Glenn for the details of what these "first
> ancestors" mean. I still would like to pursue the mtDNA and Y-Chromosome
> a bit further if I might.
>
> Please let it be clear that I am not at all looking for a Biblical
> aspect of this area. I am simply interested in the evolutionary aspects.
>
> Sticking with the Y-chromosome: I see how genes in general can swap back
> and forth and how any given gene would have an ancestor back in the past
> somewhere. In the Y-chromosome it is easier to think about, if for no
> other reason than that it passes only from father to son and also the
> time scale seems so short!.
>
> Back some 100K years ago we have one man who has passed his
> chromosome to the entire human race. I wonder about the other humans
> who lived at that time. Certainly there were in the order of 100K men
> who had a different Y-chromosome. What happened to them? Apparently
> their descendents all died off. Would I expect that to be true? Heck no!
> --- unless they were genetically inferior. It seems really weird for
> that to have happened simply as a matter of course. In 100K years with
> an generally expanding population, I would expect the human race to have
> Y-chromosomes for many different sets of "Adams" back at that time in
> the not-so-distant-past.
>
> If you can bear with me, what is wrong with that reasoning?
>
> 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)
> ===================================
-- =================================== 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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