Contra blank-slaters on the right, sexual orientation is determined prenatally, not by parenting or recruitment. https://www.scientificamerican.com/article/beware-bogus-theories-of-sexual-orientation/?wt.mc=SA_Twitter-Share …
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Replying to @WiringTheBrain
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@WiringTheBrain Probably not (homosexuality likely pathogenic, at least for men) http://www.unz.com/jman/greg-cochrans-gay-germ-hypothesis-an-exercise-in-the-power-of-germs/ …@sapinker@sciam5 replies 2 retweets 5 likes -
Replying to @JayMan471
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@JayMan471@sapinker Just because conditions that are selected against persist does NOT => high-risk genetic variants persist. They recur.1 reply 0 retweets 0 likes -
Replying to @WiringTheBrain
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@WiringTheBrain Not at 3-5% prevalence, no. Most genetic load syndromes top out at 1%.@sapinker2 replies 0 retweets 3 likes -
Replying to @JayMan471
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@JayMan471@sapinker Evidence for partial heritability of sexual orientation is strong and consistent http://www.wiringthebrain.com/2014/03/gay-genes-yeah-but-no-well-kind-of-but.html …2 replies 0 retweets 0 likes
I'm not a pro, but 64/71 identical male Swedish twins discordant for homosexuality seems like weak heritability
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