Perplexed in Peoria  wrote or quoted:
> "Guy Hoelzer"  wrote in message
news:cfg2sd$n9h$1{at}darwin.ediacara.org...
> > dkomo at dkomo871{at}comcast.net wrote on 8/11/04 8:53 AM:

> > > In other words, isn't it the DNA that has by far the strongest 
> > > influence on the final phenotype?
> >
> > No.  You don't seem to get the point that development is a consequence of
> > the interplay between genome and the embryo's (fetus's...) external
> > environment.  The information guiding that development exists in both
> > places.  Fraternal twins have different genomes and share most factors in
> > their external environments during gestation (and to a lesser degree beyond
> > that).  Consequently, the interaction between genome and environment is
> > different for fraternal twins.  If you take embryonic clones and rear them
> > in different environments they develop differently.  Under your logic that
> > would seem to demonstrate that phenotypic differences are caused
strictly by
> > the environment, but of course that is not the case.
> 
> Dr. Hoelzer,
> You may wish to Google for /bovine frozen embryos/ both for your own
> knowlege and to correct the misinformation you have fed poor Hendricks474.
> I mention this in this context because I doubt that the huge international
> commerce in embryos is motivated by a desire to get the poor little things
> to the optimal prenatal environment.  Instead it takes place because
> agricultural interests with a lot of money invested have come to believe
> that genetics is important, particularly over multiple generations, whereas
> any almost womb will do the job.

You might like to try the experiment of implanting a fertilised 
bovine egg in a mouse womb - and see how your strange theory
about any womb being equally good turns out in practice.
-- 
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