[Dragaera] Breaking the Cycle - Genetic Purity

[Alipaz, Julie]

> On 8/28/06, Philip Hart <philiph at slac.stanford.edu> wrote:
> > On Mon, 28 Aug 2006, Maximilian Wilson wrote:
> > > Sounds like a good way to come out with a lot of non-Yendi
> > > crossbreeds, if the Yendi male (say, Pel) passes on his non-Yendi
> > > genes (say, Issola) instead.
> >
> > Well, it's complicated I think, and I didn't want to get into the
> > whole mess since my genetics knowledge is puddle-shallow, but
> > I can imagine a few scenarios: the allele in question is dominant,
> > and most Yendi have two copies, in which case there would be no
> > real crossbreeds.  Or many Yendi have one copy, so half of the
> > children wouldn't be Yendi.  But those children wouldn't come back
to
> > House Yendi, keeping things pure on that side.
>
> Dragaeran genetics may be totally different from genetics as we know
> it, but this doesn't make any sense under Mendelian genetics.

>Umm, I'm claiming that one copy makes for a Yendi.  Then ok there's a
>problem with having too many heterozygous Y - sometimes their children
>won't have the house characteristic - but presumably they'll be
expelled.
>It's like having a non-adaptive allele that's fatal if homozygous -
>there would be a selection pressure against it.  I think that makes
sense.

You can't have heterozygous Y

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