How much influence do parents have over their children? Is intelligence inherited?

About whether homosexuality is innate or learned. Can you tell by looking at a person whether they are homosexual? Are there differences between heterosexual and homosexual brains? Is homosexuality a result of choice or is it innate?

Are people from some cultures more aggressive than others? Is the need for revenge something learned or innate?

Are there biological reasons why men have a greater tendency than women to desire uncommitted sex? Are ideals of chastity that women embrace to a greater extent than men a result of an evolutionary strategy, or is it a historical legacy from the Victorian era?

Do genetic differences exist between different peoples, and how large are the differences between us?

What it is that makes us feel like boys or girls? Is it something we are born with or something we have learned from our surroundings?