[asa] Re: Bottlenecks, etc. - A wild and crazy hypothesis

From: David Campbell <pleuronaia@gmail.com>
Date: Thu Feb 26 2009 - 16:41:23 EST

A couple of notes;

We actually have multiple copies of MHC, so an individual can (and
generally does) have more than two versions; I forget exactly how many
is normal.

One candidate for a gene with multiple effects getting altered
(whether by a transposon or some other means) would be one relating to
developmental timing. In certain ways, modern humans appear
neotenous-i.e., adult humans have some features more typical of young
apes such as the prolonged period of brain growth in the young and
corresponding relatively large brain, short face, etc.

-- 
Dr. David Campbell
425 Scientific Collections
University of Alabama
"I think of my happy condition, surrounded by acres of clams"
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Received on Thu Feb 26 16:41:59 2009

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