[Dragaera] Breaking the Cycle - Genetic Purity

[Maximilian Wilson]

On 8/28/06, Alipaz, Julie <jalipaz at illumina.com> wrote:
>
> Dragaeran genetics may be totally different from genetics as we know
> it, but this doesn't make any sense under Mendelian genetics. If the
> allele in question is dominant, and a Yendi has two copies, yes, if he
> has a child with an Issola, the child is guaranteed to have a Yendi
> gene and a (hypothetical) Issola gene. But now his child doesn't have
> two copies of the Yendi gene, so there's an even chance that when the
> child mates with (say) a Dzur, you'll get a Dzur/Issola crossbreed
> instead of a Dzur/Yendi=Yendi. The only way to get two copies of the
> Yendi gene is to breed a Yendi with a Yendi, and cross your fingers
> (hoping that no recessive traits are getting passed on instead). If
> Yendi is the dominant gene, it will be very hard to purge recessive
> non-Yendi traits from the gene pool.
>
>
> Unless you back cross to a yendi then you have a 1/4 chance that you
> will get a homozygous recessive yendi trait popping up.

Right; which is why you're crossing your fingers.

'Maximilian

-- 
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