There is no ‘gay gene.’ There is no ‘straight gene.’ Sexualy is jt plex, study nfirms | PBS NewsHour

Contents:

• ARE WE BORN GAY?
• WHY ARE PEOPLE GAY? GAY BY CHOICE OR IS BEG GAY GEIC?
• THERE IS NO ‘GAY GENE.’ THERE IS NO ‘STRAIGHT GENE.’ SEXUALY IS JT PLEX, STUDY NFIRMS
• IS A PERSON ‘BORN GAY’, OR IS BEG GAY A LEARNED BEHAVR?
• IS ANYONE BORN GAY?
• WHAT DO THE BIBLE SAY ABOUT BEG BORN GAY?
• ARE YOU BORN GAY OR IS A CHOICE? SCIENTISTS MIGHT HAVE FOUND THE ANSWER
• SCIENTISTS MAY HAVE FALLY UNLOCKED PUZZLE OF WHY PEOPLE ARE GAY
• CAN A PERSON BE BORN GAY?
• ARE GAYS BORN OR MA?
• 'GAY GEN': SCIENCE IS ON THE RIGHT TRACK, WE'RE BORN THIS WAY. LET’S AL WH .
• SECTN 2: KNOWG GAYS AND LBIANS, RELIG CONFLICTS, BELIEFS ABOUT HOMOSEXUALY
• THE 'GAY GENE' IS A MYTH BUT BEG GAY IS 'NATURAL,' SAY SCIENTISTS

ARE WE BORN GAY?

But on the other, he totally wrtl wh the image produced by the ia that one might be "born gay, " of a ltle male neonate appearg wh illy pk diapers and graspg a Barbie doll. First, by ncentratg on the left si of the graphs, the rear n see that there is a segment of adult gay men who remember beg highly genr non-nformg as kids.

Maybe we n agree that the image evoked by "born gay"—that ltle girl neonate appearg wearg overalls and graspg a toy tck—do not help thk through qutns of sexual sire and inty. ” Many people, cludg sex rearchers and scientists, believe that sexual orientatn is like a sle wh entirely gay on one end and entirely straight on the other. It very much appears that same-sex sexual attractn is not a choice but actg on is; so if you fe gay as the mere prence of same-sex attractn, then om everythg we unrstand, beg gay is not a choice.

If, on the other hand, you nsir someone to be gay only if they act on their same-sex attractn then beg gay n be nsired a choice pendg on an dividual's behavr.

WHY ARE PEOPLE GAY? GAY BY CHOICE OR IS BEG GAY GEIC?

Humans have tried to unrstand human sexualy for centuri — and geics rearchers joed the ay the early 1990s after a seri of studi on tws suggted homosexualy ran fai.

THERE IS NO ‘GAY GENE.’ THERE IS NO ‘STRAIGHT GENE.’ SEXUALY IS JT PLEX, STUDY NFIRMS

“As a teenager tryg to unrstand myself and unrstand my sexualy, I looked at the ter for “the gay gene” and obvly me across Xq28, ” said Fah Sathirapongsasuti, a study -thor and senr scientist at 23andMe, which he joked once led him to believe he hered his gayns om his mother.

The rearchers had members of the same-sex muny review the study’s sign and language, and they adm that their termology and fns for gay, lbian and heterosexual do not reflect the full nature of the sexualy ntuum. “[Our study] unrsr an important role for the environment shapg human sexual behavr and perhaps most importantly there is no sgle gay gene but rather the ntributn of many small geic effects sttered across the genome, ” Neale said.

This uld mean that there are some gen that are passed down om the mother’s si that make women more fertile and make men more likely to be gay. Gay nrologist Simon LeVay explas that sexual orientatn is “the tra that predispos to experience sexual attractn” (Gay, Straight, and the Reason Why, 1).

IS A PERSON ‘BORN GAY’, OR IS BEG GAY A LEARNED BEHAVR?

When the qutn is posed whether some people are “born gay, ” the real qutn is, “Are some people oriented om birth toward homosexual attractns?

In the early 1990s, there was great hope some circl that a “gay gene” would be found that would prove homosexualy to be fixed and termed geilly.

IS ANYONE BORN GAY?

For example, has been reported that men wh more olr brothers are more likely to be homosexual, and has been speculated that this uld relate to a blogil effect the mother’s womb. Most rearchers prr to the 1970s believed, as many still do today, that homosexual attractns are primarily a velopmental rult of childhood experienc.

Even some people who self-intify as gay are rejectg the ia that they were “born that way” — and the fensivens of the implied argument, “I’m only like this bee I n’t help . Many homosexuals hold to the belief that they were born that way, and there are some rearchers who suggt, on the basis of several recent studi, that there may be a geic predisposn toward homosexualy some people. In any se, other scientists have challenged the studi, and there is prently no generally accepted scientific evince that the homosexual clatn is born.

WHAT DO THE BIBLE SAY ABOUT BEG BORN GAY?

The largt ever study to the existence of a so-lled ‘gay gene’, nducted by NorthShore Rearch Instute, looked at 409 sets of gay brothers an effort to fally put the bate to rt. Lead scientist Alan Sanrs said that the work “eros the notn that sexual orientatn is a choice” – but said the study also did not intify a sgle gene which was the direct e of homosexualy.

Though some rema sceptil, nroscientist Simon LeVay told the New Scientist: “His study knocks another nail to the ff of the ‘chosen liftyle’ theory of homosexualy.

ARE YOU BORN GAY OR IS A CHOICE? SCIENTISTS MIGHT HAVE FOUND THE ANSWER

“Y, we have a choice life, to be ourselv or to nform to someone else’s ia of normaly, but beg straight, bisexual or gay, or none of the, is a central part of who we are, thanks part to the DNA we were born wh. Richard Lane of Stonewall told the Inpennt: “While some people may choose to foc on the ntug bate of whether people are born gay or not, we’ll ntue to foc on makg sure everyone has the same rights and opportuni regardls of who they love. A group of scientists suggted Tuday that homosexuals get that tra om their oppose-sex parents: A lbian will almost always get the tra om her father, while a gay man will get the tra om his heredary lk of homosexualy has long been tablished, but scientists knew was not a strictly geic lk, bee there are many pairs of intil tws who have differg sexuali.

SCIENTISTS MAY HAVE FALLY UNLOCKED PUZZLE OF WHY PEOPLE ARE GAY

Scientists om the Natnal Instute for Mathematil and Blogil Synthis say homosexualy seems to have an epigeic, not a geic thought to have some sort of heredary lk, a group of scientists suggted Tuday that homosexualy is lked to epi-marks — extra layers of rmatn that ntrol how certa gen are exprsed. In homosexuals, the epi-marks aren't erased — they're passed om father-to-dghter or mother-to-son, explas William Rice, an evolutnary blogist at the Universy of California Santa Barbara and lead thor of the study.

"There is pellg evince that epi-marks ntribute to both the siary and dissiary of fay members, and n therefore feasibly ntribute to the observed faial herance of homosexualy and s low nrdance between [intil] tws, " Rice and his team created a mathematil mol that explas why homosexualy is passed through epi-marks, not geics. Evolutnarily speakg, if homosexualy was solely a geic tra, scientists would expect the tra to eventually disappear bee homosexuals wouldn't be expected to reproduce. But bee the epi-marks provi an evolutnary advantage for the parents of homosexuals: They protect fathers of homosexuals om unrexposure to ttosterone and mothers of homosexuals om overexposure to ttosterone while they are gtatn.

CAN A PERSON BE BORN GAY?

"The epi-marks protect fathers and mothers om excs or unrexposure to ttosterone — when they rry over to oppose-sex offsprg, n e the masculizatn of femal or the femizatn of mal, " Rice says, which n lead to a child beg gay. Rice not that the markers are "highly variable" and that only strong epi-marks will rult a homosexual scientists have long spected some sort of geic lk, Rice says studi attemptg to expla why people are gay have been few and far between.

" Homosexual behavr has been observed black swans, pengus, sheep, and other animals, he 's mol still needs to be tted on real-life parent-offsprg pairs, but he says this epigeic lk mak more sense than any other explanatn, and that his team has mapped out a way for other scientists to tt their work. In 1996, The Advote, a gay and lbian magaze, asked rears what they believed the potential impact would be to the advancement of gay and lbian rights if a scientific disvery prov a blogil basis for homosexualy.

ARE GAYS BORN OR MA?

About 61 percent of the magaze’s rears asserted that such scientific rearch would advance the e of gays and lbians and lead to more posive attus toward homosexualy.

For example, if one n be born gay, much as one n be born wh brown ey, then a fair society uld not possibly nmn him as beg unnatural or immoral.

To that end, gay activists and the liberal media have actively enuraged the ia that homosexualy is hered and unchangeable, and rearchers have diligently sought scientific evince to back up that claim. Unfortunately for the pro-homosexualy movement, the rearch on this subject has failed to tablish any scientific evince that shows a purely geic basis for homosexualy.

'GAY GEN': SCIENCE IS ON THE RIGHT TRACK, WE'RE BORN THIS WAY. LET’S AL WH .

LeVay believed the differenc proved a blogil basis for homosexualy, but he failed to nsir a variety of reasons, other than geic, that the bras were different. His team of rearchers began a seri of gene lkage studi, which fai wh several homosexuals unrwent geic analysis to terme if any chromosomal variants uld be found the fay and if the variant rrelated wh those dividuals who displayed the homosexualy.

Although may be easier, psychologilly, for a homosexual to believe that homosexualy is born, the accumulated scientific evince suggts otherwise.

How Olr Brothers Influence HomosexualyHomosexualy might be partly driven by a mother’s immune rponse to her male fet—which creas wh each son she MacGregor / RtersHere’s what we know: Homosexualy is normal. Female Japane maqu will even pete tersexually wh mal for exclive accs to female sexual ’s what we don’t know: What, specifilly, someone to bee gay, straight, or somethg between. Part of the explanatn is geic, but bee most intil tws of gay people are straight, heredy don’t expla “why” qutn is important bee “there is a strong rrelatn between beliefs about the origs of sexual orientatn and tolerance of non-heterosexualy, ” acrdg to the report thors, who are om seven universi spanng the globe.

SECTN 2: KNOWG GAYS AND LBIANS, RELIG CONFLICTS, BELIEFS ABOUT HOMOSEXUALY

(When Atlantic ntributor Chandler Burr proposed his 1996 book, A Separate Creatn, that people are born gay, Southern Baptists lled to boytt Disney films and parks prott agast the publisher, Disney subsidiary Hypern.

THE 'GAY GENE' IS A MYTH BUT BEG GAY IS 'NATURAL,' SAY SCIENTISTS

) It shouldn’t matter whether people “choose” to be gay, but polilly, do—at least for of the most nsistent environmental explanatns for homosexualy is lled the “aternal birth orr effect. Average prevalence 2013 (Sav-Williams and Vrangalova)Acrdg to the report, Blanchard now plans to tt mothers of gay and straight men for the prence of the antibodi. But gaps will rema, such as why some firstborn sons are gay, why some intil tws of gay sons are straight, and why women are gay, to name jt a review-paper thors do le out one explanatn for homosexualy, however: That tolerance for gay people enurag more people to bee gay.

“Homosexual orientatn do not crease equency wh social tolerance, although s exprsn ( behavr and open intifitn) may do so, ” they reasong—that a tolerant society somehow enurag homosexualy to flourish—has been ed to support anti-gay legislatn Uganda, Rsia, and elsewhere. Fdg evince for a blogil basis should not sre or unrme gay, lbian and bisexual (LGB) rights (the studi I refer to do not clu transgenred dividuals, so I’ll nfe my ments to lbian, gay and bisexual people).

Evince om pennt rearch groups who studied tws shows that geic factors expla about 25-30% of the differenc between people sexual orientatn (heterosexual, gay, lbian, and bisexual). Tw studi are a first look to the geics of a tra and tell that there are such thgs as “gen for sexual orientatn” (I hate the phrase “gay gene”). Three gene fdg studi showed that gay brothers share geic markers on the X chromosome; the most recent study also found shared markers on chromosome 8.