I understand that some traits are supposed to be inheritable. Bad ones include harelip, slow, and imbecile. Good ones seem to be rarer, like genius, quick, and strong. Do these really get inherited? If I marry two geniuses together will they have genius kids?
From what I've read DNA is just for appearances. Is that right or does that affect these traits, too?
Does anyone know the mechanics of this? Or at least the odds of having, say, a strong kid with one strong parent? How about two strong parents?