#1 Posted by umbrafeline (5300 posts) - - Show Bio

http://www.usnews.com/news/articles/2012/12/11/scientists-may-have-finally-unlocked-puzzle-of-why-people-are-gay

Scientists may have finally solved the puzzle of what makes a person gay, and how it is passed from parents to their children.

A group of scientists suggested Tuesday that homosexuals get that trait from their opposite-sex parents: A lesbian will almost always get the trait from her father, while a gay man will get the trait from his mother.

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The hereditary link of homosexuality has long been established, but scientists knew it was not a strictly genetic link, because there are many pairs of identical twins who have differing sexualities. Scientists from the National Institute for Mathematical and Biological Synthesis say homosexuality seems to have an epigenetic, not a genetic link.

Long thought to have some sort of hereditary link, a group of scientists suggested Tuesday that homosexuality is linked to epi-marks — extra layers of information that control how certain genes are expressed. These epi-marks are usually, but not always, "erased" between generations. In homosexuals, these epi-marks aren't erased — they're passed from father-to-daughter or mother-to-son, explains William Rice, an evolutionary biologist at the University of California Santa Barbara and lead author of the study.

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"There is compelling evidence that epi-marks contribute to both the similarity and dissimilarity of family members, and can therefore feasibly contribute to the observed familial inheritance of homosexuality and its low concordance between [identical] twins," Rice notes.

Rice and his team created a mathematical model that explains why homosexuality is passed through epi-marks, not genetics. Evolutionarily speaking, if homosexuality was solely a genetic trait, scientists would expect the trait to eventually disappear because homosexuals wouldn't be expected to reproduce. But because these epi-marks provide an evolutionary advantage for the parents of homosexuals: They protect fathers of homosexuals from underexposure to testosterone and mothers of homosexuals from overexposure to testosterone while they are in gestation.

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"These epi-marks protect fathers and mothers from excess or underexposure to testosterone — when they carry over to opposite-sex offspring, it can cause the masculinization of females or the feminization of males," Rice says, which can lead to a child becoming gay. Rice notes that these markers are "highly variable" and that only strong epi-marks will result in a homosexual offspring.

Though scientists have long suspected some sort of genetic link, Rice says studies attempting to explain why people are gay have been few and far between.

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"Most mainstream biologists have shied away from studying it because of the social stigma," he says. "It's been swept under the rug, people are still stuck on this idea that it's unnatural. Well there are many examples of homosexuality in nature, it's very common." Homosexual behavior has been observed in black swans, penguins, sheep, and other animals, he says.

Rice's model still needs to be tested on real-life parent-offspring pairs, but he says this epigenetic link makes more sense than any other explanation, and that his team has mapped out a way for other scientists to test their work.

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"We've found a story that looks really good," he says. "There's more verification needed, but we point out how we can easily do epigenetic profiles genome-wide. We predict where the epi-marks occur, we just need other studies to look at it empirically. This can be tested and proven within six months. It's easy to test. If it's a bad idea, we can throw it away in short order."

well if you put it like that, it makes much more sense than aliens :-/

#2 Posted by Xanni15 (6758 posts) - - Show Bio

Slightly more in depth than "They just are."

#3 Posted by King Saturn (223823 posts) - - Show Bio

Hmmmm... sounds interesting.

#4 Edited by The_Legendary_SuperSaiyan_Hulk (9535 posts) - - Show Bio

Pretty sure I'm gay because I like guys lol. Like everything needs some kind of fancy explanation XD

#5 Edited by OmgOmgWtfWtf (6948 posts) - - Show Bio

So it's actually logical to blame your parents for this particular issue.

#6 Edited by turoksonofstone (13199 posts) - - Show Bio

SCIENCE!! Neat stuff.

Really cool on one hand I feel like parents of a Gay child might find this sort of science particularly fascinating and it could potentially reinforce the Parent/Child bonds in a lot of unforseen ways.

on the other Hand Maybe I'm just paranoid and no offense intended to anyone but I

Don't like the Idea of this research/finding in a way. One would expect a "cure" or "vaccine" to be offered at the conclusion of or as a result of this type of research. People love to "cure" stuff.

Gay folks are easier to find and Identify than ever before not sure if that is good for Gay folks either. Anonymity has its privileges too.

just Something seems eugenics-cy about it all IMO..

#7 Edited by DH69 (4258 posts) - - Show Bio

LETS GO ANTIQUING!!!

i'll go away now...

#8 Edited by Tacos_Kickass (844 posts) - - Show Bio

Science is for heathens we all know the Devil makes you fabulous.

#9 Posted by mrdecepticonleader (17588 posts) - - Show Bio

Interesting thank you very much for sharing as usual :)

#10 Posted by Jonny_Anonymous (32813 posts) - - Show Bio

Science is for heathens we all know the Devil makes you fabulous.

that reminds me of this quote

“He paused, twisting his goatee, considering the law in Deuteronomy that forbade clothes with mixed fibers. A problematic bit of Scripture. A matter that required thought. "Only the devil wants man to have a wide range of lightweight and comfortable styles to choose from," he murmured at last, trying out a new proverb. "Although there may be no forgiveness for polyester. On this one matter, Satan and the Lord are in agreement.”

#11 Posted by Aiden Cross (15562 posts) - - Show Bio

Quite interesting

#12 Posted by DeathpooltheT1000 (9503 posts) - - Show Bio

Pretty sure I'm gay because I like guys lol. Like everything needs some kind of fancy explanation XD

I dont, even when i am demisexual i dont need to look the reason why i am who i am.

I could use my time so i look the cure for cancer.

Screw it i am going to look why people is gay, even when is a useless thing and i could use my time for something that has sense, screw it, i am going to look for useless things.

And like always they used their time and get not an actual awnser, they just got to another bizarre theory.

#14 Posted by cameron83 (6673 posts) - - Show Bio

Ah,cool :)

#15 Edited by Hypnosis (270 posts) - - Show Bio

Wow some pretty in-depth technical information. Guess I can use this as leverage if coming out to Momma goes wrong XD

#16 Posted by russellmania77 (14606 posts) - - Show Bio
#17 Posted by Avenging-X-Bolt (12561 posts) - - Show Bio

Pretty sure I'm gay because I like guys lol. Like everything needs some kind of fancy explanation XD

ehh, other might not feel the same way. a person who is uncomfortable or miserable with their sexuality might want to know the science behind it so that they can change it. its good that you're happy and content with yourself but not everyone else is.

#18 Edited by _Zombie_ (10321 posts) - - Show Bio

Some guys are born and like guys, some ladies are born and like ladies. Dunno why it's so confusing that fckin' scientists are getting involved.

#19 Posted by thespideyguy (2645 posts) - - Show Bio

It's cool but, I can't buy into it. These people are misguided.

#20 Posted by nickthedevil (11598 posts) - - Show Bio

It's called science for a reason. Don't knock it. Someone decided to research, so they did.

Stop crying like a bunch of emotional children.

Grow up.

#21 Posted by DeathpooltheT1000 (9503 posts) - - Show Bio

It's called science for a reason. Don't knock it. Someone decided to research, so they did.

Stop crying like a bunch of emotional children.

Grow up.

And this is not science if you read it, you will notice it.

#22 Edited by FadeToBlackBolt (23334 posts) - - Show Bio

I think researching "why people are gay" is really a double-edged sword, on the one-hand, it shuts up the "it's a choice" crowd, but one the other, if they identify why people are homosexuals, then some jag-offs are bound to want to "change" or worse; abort, foetuses who demonstrate these traits.

More to the point though, who cares? If someone is gay, they're gay. Nothing wrong with it, no reason to research it. Spend the money on something worthwhile.

#23 Posted by kuonphobos (4882 posts) - - Show Bio

Shall we consider the ramifications of a discovery that genetics or epigenetics is responsible for the compulsion for serial murder and pedophilia as well?

Slippery slope.

#24 Posted by Captainamerica119 (200 posts) - - Show Bio

WHO CARES? If they're gay or lesbian it doesnt matter. Let them live in peace. Does it matter what caused them to be gay? NO!

#25 Posted by thetonester89 (46 posts) - - Show Bio

I don't think there is anything wrong with finding out why or how people are gay. I find it interesting to know.

#26 Posted by Nefarious (18760 posts) - - Show Bio

Ok. That is interesting.

#27 Posted by TDK_1997 (14456 posts) - - Show Bio

I don't know why they are even researching that.

#28 Posted by Jnr6Lil (7689 posts) - - Show Bio

Science is for heathens we all know the Devil makes you fabulous.

#29 Edited by SpideyPresence (1906 posts) - - Show Bio

@_zombie_ said:

Some guys are born and like guys, some ladies are born and like ladies. Dunno why it's so confusing that fckin' scientists are getting involved.

Scientist research for a living. That's their job and science will be around until we know everything about everything. Better now than later.

#30 Edited by MadeinBangladesh (6103 posts) - - Show Bio

#31 Posted by nick_hero22 (6743 posts) - - Show Bio

Science prevails once again

#32 Edited by InnerVenom123 (29499 posts) - - Show Bio

I think researching "why people are gay" is really a double-edged sword, on the one-hand, it shuts up the "it's a choice" crowd, but one the other, if they identify why people are homosexuals, then some jag-offs are bound to want to "change" or worse; abort, foetuses who demonstrate these traits.

It'd be hard for them to justify genocide.

But they'd try, wouldn't they?

F**ked up to think about.

#33 Posted by BiteMe-Fanboy (7572 posts) - - Show Bio

Just in time....

Coincidence.

#34 Posted by XImpossibruX (5170 posts) - - Show Bio

@captainamerica119 said:

WHO CARES? If they're gay or lesbian it doesnt matter. Let them live in peace. Does it matter what caused them to be gay? NO!

No, but it's called being human.....

Seriously humans desire knowledge, what's in space, how animals work, psychology, human body, soul, religion, how humans work ect. This is no different.

#35 Posted by DarkShadows (742 posts) - - Show Bio

I like science, but this... I don't like it at all because it sounds like it's the parents fault and giving false hope to people who think that there may be a "cure" to help their homosexual kids. So what if a boy likes a boy or a girl likes a girl, who cares! That's their business.

#36 Edited by Kamikaze_ (901 posts) - - Show Bio

Interesting