re: Homosexuality not caused by genetics. They ar not "born that way ETA Addit link added

The OP specifically says that homosexuality is not genetic.

You stalking me bro?

I kind of have a fat arse. I don't miss leg day.

Well, there has been three studies mentioned in this thread. One debunked.

The only one saying they found the gay gene.

Dude, look at your post history.

Everything you talk about is about cocks, micro-penises, and being gay.

Maybe you are projecting.

Hmmmmm...

Ok, ok.

You don't have an agenda against homosexuals, and you were only posting the article to provide scientific edification for the poliboard. You're also not latently homosexual yourself. I made that up, because I thought it was funny and felt like fricking with you after the comments you made to Toddy.

You probably have a lovely wife and two wonderful children, and if we lived near each other we might even have a beer together. You're just another guy in this big country made up of all kinds of people just trying to make a life for themselves without some twat trolling them.

Happy Fourth...oh shite... Fifth. I got a long drive in the morning. Good night for real.

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Think about this though... What the frick could ever happen,that could turn a straight guy queer? I can't think of one thing that makes sense. It seems to me that that they must be born gay.

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Well, people with clinical depression or bipolar disorder aren't usually born with those abnormalities either - they don't choose to have a mental disorder - it's usually a chemical imbalance that occurs in the teenage hormonal stage. Maybe homosexuality follows a similar pattern?

I wonder if test have been conducted on twins to see if they share mental disorders, as well...

Wow. I gotta say congrats on getting a 430+ post thread on behavioral genetics.

Sounds like a good test case to try to disprove Godwin's law. This has to have devolved a discussion of Nazi eugenics at some point, right?

For sure.

Hope you did the same.

Now taking advantage of a quiet house to get a little work done, and procrastinate on the poli-board of course. Have we found the cause for homosexuality yet?

Yeah, I'll start off by saying I don't know the literature on homosexuality, but I'm not aware of any behavioral traits that have been associated with single genes. Virtually any behavioral trait studied is at least partially accounted for by heritability, though, presumably through many genes. In fact, heritability of behavioral traits is so easily replicable that it's been stated (with only a little exaggeration, I think) as to a so-called "first law of behavioral genetics" that "all behavioral traits are heritable". That's not to say that all traits entirely or even primarily heritable, only that they're partially so since like in your OP, lots of the literature only find part of the variance in traits explainable by heritability.

What's interesting and non-intuitive comes in second and third laws, which state that the effect of being raised in the same family is smaller than the effect of the genes (2nd law) and that "a substantial portion of the variation in complex human behavioral traits is not accounted for by the effects of genes or families" (3rd law), with that other portion often attributed to peer-group effects and other non-shared environments.

In summary, for most traits tested (IQ, personality, etc., genes contribute ~40-50%, shared environment (family rearing) 0-10%, unique environment 50% (peer groups, outside environment like school, culture, and ???).

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Homosexuality not caused by genetics. They are not "born that way

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This is a shocking development.

Not really.