An incredibly detailed scientific explanation of Harry Potter's "wizarding gene"

Wizards don't necessarily beget wizards in the world of Harry Potter. Although two magical parents or one magical parent and one non-magical parent usually results in a magic-wielding offspring, you frequently get characters like Hermione, who have two non-magical parents, and sometimes squibs like Mr. Filch, people… »8/12/12 10:00am8/12/12 10:00am