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O.P. RE: help with an essay, everyone will be able to contribute.
By saying that you have alex, you're also saying that homosexuality is genetic, because evolution only stamps out genetic traits that are detrimental to the organism's survival.
Homosexuality could be something that is learned, or it could be something (as some theories suggest) that is cause by chemical inbalances in the brain that begin in the womb. But I highly doubt that it's genetic, or, as you say, it would have been bred out of the species already.
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