Harry

From Respectful Insolence:

...I've found another reason to love the Harry Potter books. British geneticists Jeffrey M. Craig, Renee Dow, and Mary Ann Aitken examined the chromosomal basis of being a wizard or a muggle, suggesting that wizarding ability is inherited in a Mendelian fashion as a recessive.

The letter, published in the journal Nature argued:

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).

Now, getting your name anywhere in Nature is a major item on you CV, so, continuing with tongue in cheek, more scientists chimed in:

What about Neville's apparently poor wizarding skills? These cannot be explained by incomplete penetrance, as Craig and colleagues suggest. In incomplete penetrance, individuals either display the trait or not: they do not display an intermediate degree of the trait. Poor wizarding skills might be indicative of variable expressivity of an allele. However, both variable expressivity and incomplete penetrance are associated with dominant alleles. If the wizarding allele were dominant, rather than recessive as suggested, wizarding children such as Hermione could not be born to non-wizarding parents.

Wev. That was fun. But there's more in the comments, another better reason to love Harry Potter - not that it has lessons of biology, but that it gets religous underoos in a knot:

Magic is only a superficial reason why the Christian Right hates Harry Potter ...

Rowling's heroes and heroines think for themselves, and do not rely for their success on narrow application to a bigoted creed. In fact, the bureaucracy against which Harry finds himself ranged in the later books (quite apart from Voldemort) is itself quite like the insensitive, power-hungry, obedience-demanding institution that is... er... well, you fill in the gaps.

"Harry Potter" preaches independence of thought and makes children aware that a dominant authority which claims to be acting for the common good is not necessarily right - it thus questions the power base of the Religious Right, both in the secular and the ecclesiastical sense. No wonder it is despised.