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One step closer to tying homosexuality to the human genome
Posted on 11/20/14 at 9:45 am
Posted on 11/20/14 at 9:45 am
quote:
The largest study yet of the genetic roots of homosexuality links sexual preference in men to two regions of the genome.
At least in men, homosexuality may be a function of genetics, according to a study of more than 400 pairs of gay brothers. The research, published yesterday (November 18) in Psychological Medicine, confirms the role of a stretch of the X chromosome in determining sexual preference in men, a finding first suggested more than 20 years ago. Geneticist Dean Hamer, scientist emeritus at the National Institutes of Health, published a study in 1993 that proposed that Xq28, a region of the X chromosome, might play a role in determining whether a man was gay. “When you first find something out of the entire genome, you’re always wondering if it was just by chance,” Hamer told Science of the new study, adding that the research “clarifies the matter absolutely.”
Hamer, who recently wrote an opinion piece in The Scientist about the responsibilities of researchers who study sexual orientation, only studied 38 pairs of brothers in his 1993 study, but he told New Scientist that he sees the new paper as confirmation of his work. “Twenty years is a long time to wait for validation, but now it’s clear the original results were right,” he said. “It’s very nice to see it confirmed.”
But as was the case in 1993, not all researchers are convinced that science is homing in on the biological roots of sexual preference. Even the senior author on the Psychological Medicine paper, Northwestern University psychologist Michael Bailey, had his doubts. “I thought that [Hamer] did a fine but small study,” he told Science. “If I had to bet, I would have bet against our being able to replicate it.”
But when Bailey, who also wrote an opinion piece for The Scientist on the search for the biological roots of homosexuality, and his colleagues analyzed single nucleotide polymorphisms (SNPs) in the DNA of the brother pairs, they found five SNPs that were commonly shared by all the gay men. And those SNPs clustered in the Xq28 region on the X chromosome and in the 8q12 region of chromosome 8.
Bailey and his colleagues are now working on a genome-wide association study to confirm the results of their genetic linkage research. This analysis, which will include DNA samples from more than 1,000 additional gay men, may narrow the search for genetic signals for homosexuality down to individual genes. “It looks promising for there being genes in both of these regions,” Bailey told Science. “But until somebody finds a gene, we don’t know.”
LINK
Posted on 11/20/14 at 9:48 am to Green Chili Tiger
I posted this in the OT thread:
quote:
Can you find a link to the study doesn't require to pay to read it. I don't read the opinion pieces based on the title of a study unless I read the study's paper first.
Also how can homsexuality be a genetic deviation from the norm and not be a disease? Is it now acceptable to abort a baby because it has the gay gene?
Posted on 11/20/14 at 9:57 am to WeeWee
quote:
Can you find a link to the study doesn't require to pay to read it.
I looked. Can't find it.
Posted on 11/20/14 at 9:57 am to WeeWee
quote:
Also how can homsexuality be a genetic deviation from the norm and not be a disease?
Umm wut?
Posted on 11/20/14 at 9:57 am to WeeWee
To the abortion point you're trying to make: are you serious?
Posted on 11/20/14 at 9:58 am to Green Chili Tiger
Liberal idiots.
Just like Global warming you are all full of shyt.
Perverts, that's problem.
Have you found a gene excusing murder yet you bunch of idiot liberals.
Dumbazz fools.
Posted on 11/20/14 at 9:59 am to Green Chili Tiger
quote:
At least in men, homosexuality may be a function of genetics, according to a study of more than 400 pairs of gay brothers
This is where we were before the study, right?
Posted on 11/20/14 at 10:01 am to S.E.C. Crazy
Did you just compare homosexuals with murderers?
Posted on 11/20/14 at 10:03 am to S.E.C. Crazy
quote:
Liberal idiots.
Just like Global warming you are all full of shyt.
Perverts, that's problem.
Have you found a gene excusing murder yet you bunch of idiot liberals.
Dumbazz fools.
Please never change, you beautiful psycho.
Posted on 11/20/14 at 10:05 am to Green Chili Tiger
Will be interesting to see some on the lefts reaction when/if they find the gene and can remove the trait all in the name of "its my body I will do what I like with it".
Will Ellen be canceled to lack of viewers?
Will Ellen be canceled to lack of viewers?
Posted on 11/20/14 at 10:09 am to goatmilker
quote:
when/if they find the gene
This is what's confusing. How do you know if you're "one step closer" if you haven't found what you're looking for? You can only know that in hindsight.
Posted on 11/20/14 at 10:11 am to Green Chili Tiger
So I went through Cambridge journals, and searched the last 3 issues of Psychological Medicine and found nothing. I'm very perplexed.
Posted on 11/20/14 at 10:13 am to onmymedicalgrind
quote:
So I went through Cambridge journals, and searched the last 3 issues of Psychological Medicine and found nothing. I'm very perplexed.
LINK to the paywall for the article
Posted on 11/20/14 at 10:15 am to GumboPot
quote:
This is what's confusing. How do you know if you're "one step closer" if you haven't found what you're looking for?
What you have to realize is "a gene" for something as complex as sexual preference will likely never be found. That's not the way things work. Even for better understood, very heritable pathologies such as diabetes or HTN, there is no single gene implicated. Heritability is the more interesting subject here, and evidence of such supports the theory that sexual preference is somewhere in the DNA (whether specific sequence, alleles, epigenetic factors, etc) even if those specific mechanisms are never completely elucidated.
Posted on 11/20/14 at 10:18 am to Green Chili Tiger
quote:
Green Chili Tiger
Oh ok nice. Apparently it wasn't published in its Dec print issue, just online. Thanks.
I was able to get through using my school's subscription, but what exactly is the police on c&p'ing these types of things?
Posted on 11/20/14 at 10:19 am to Green Chili Tiger
Studying homosexual pairs is a little bit of a confirmation bias. I think studying discordant sexual preferences with more similar DNA would be far more instructive.
But Hamer has an agenda. So no surprise there. The LOL quote: "clarifies the matter absolutely.” Wut?
Does anyone doubt homosexuality has a genetic component? I don't think anyone who thinks about this subject seriously does. The question is whether the genetics is determinant.
But Hamer has an agenda. So no surprise there. The LOL quote: "clarifies the matter absolutely.” Wut?
Does anyone doubt homosexuality has a genetic component? I don't think anyone who thinks about this subject seriously does. The question is whether the genetics is determinant.
Posted on 11/20/14 at 10:19 am to onmymedicalgrind
quote:
what exactly is the police on c&p'ing these types of things?
Not sure. Maybe ask on the Help Board?
Posted on 11/20/14 at 10:21 am to S.E.C. Crazy
quote:
From an idiot pushing two men sucking cocks as normal, you ignorant POS.
You need to get naked with about 40 of them and just go for it, I mean be what your heart desires you liberal idiot.
I can feel the love of Christ emanating through the keyboard.
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