Genetics

[jlnbtr]

No: HPFGUIDX 137474

I'm reposting this message since I sent it without a Subject. Sorry, 
I'll delete the first one.

--- In HPforGrownups at yahoogroups.com, Juli <jlnbtr at y...> wrote:

> I was just on The Leaky Cauldron and I found this link:
> http://www.nature.com/nature/journal/v436/n7052/full/436776a.html
>  
> It solves our eternal dilema of wizarding genetics. Although It 
doesn't solve the Squib question, according to the author it's just 
because a lack of penetrance.
>  
> Wizards or witches can be of any race, and may be the offspring of 
a wizard and a witch, the offspring of two muggles ('muggle-born'), 
or of mixed ancestry ('half-blood').
>  
> This suggests that wizarding ability is inherited in a mendelian 
fashion, with the wizard allele (W) being recessive to the muggle 
allele (M). According to this hypothesis, all wizards and witches 
therefore have two copies of the wizard allele (WW). Harry's friends 
Ron Weasley and Neville Longbottom and his arch-enemy Draco Malfoy 
are 'pure-blood' wizards: WW with WW ancestors for generations back. 
Harry's friend Hermione is a powerful muggle-born witch (WW with WM 
parents). Their classmate Seamus is a half-blood wizard, the son of 
a witch and a muggle (WW with one WW and one WM parent). Harry (WW 
with WW parents) is not considered a pure-blood, as his mother was 
muggle-born.
>  
> There may even be examples of incomplete penetrance (Neville has 
poor wizarding skills) and possible mutations or questionable 
paternity: Filch, the caretaker, is a 'squib', someone born into a 
wizarding family but with no wizarding powers of their own.
>  
> 
> 
> Juli
> Aol: jlnbtr
> Yahoo: jlnbtr