@Flatland_USA @SwiftOnPumpkins https://en.wikipedia.org/wiki/Biology_and_sexual_orientation … which does leave plenty of unknown environment/noise, but genetic contribution seems
@Flatland_USA @SwiftOnPumpkins Looks like twin studies tend to find more than that genetic, like 30-40%, and very low shared environment.
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@Flatland_USA @SwiftOnPumpkins substantial enough
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