[HPforGrownups] Creevey Brothers and Genetics

[Penny & Bryce Linsenmayer]

No: HPFGUIDX 6427

Hi --

r.yoo at scotland.com wrote:

> Instead of the "wizarding gene" being recessive it is possible that it
>
> is "sex-linked".  An example of a sex-linked gene is colorblindness,
> which is found mostly in males.  This would explain why both Creevey
> brothers are wizards even though their parents are Muggles, however
> that doesn't explain Hermione.  There are women who are colorblind,
> but that is usually as a result of some other gene, not the sex-linked
>
> gene that causes it in males.  Not to be mean, Hermione could be the
> result of a mutation.  Do we know really how big a proportion of kids
> are from Muggle families?  Or how many are wizarding siblings from
> Muggle parents?  Is it rare?
>

I know *nothing* about genetics really, but I don't think it's likely
that it's sex-linked because Hermione is not the only muggle-born female
that we know.  Lily (Evans) Potter was also apparently muggle-born.  So
.... it seems unlikely to me that it's sex-linked.

Penny


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