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Re: Platypus genome
> Apparently there are already men who don't have a Y
> chromosome at all, but
> rather two Xs. Apparently whatever 'crucial' genes
> on the Y chromosome that
> cause an embryo to develep as male have been
> replaced by genes on other
> chromosomes in those (very rare) cases.
Much info here:
http://www.ncbi.nlm.nih.gov/entrez/dispomim.cgi?id=278850
Eike
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