There’s (Still) No Gay Gene | Harvard Magaze

Contents:

• THERE IS NO ‘GAY GENE.’ THERE IS NO ‘STRAIGHT GENE.’ SEXUALY IS JT PLEX, STUDY NFIRMS
• SCIENTISTS QUASH IA OF SGLE 'GAY GENE'
• THE 'GAY GENE' IS A TOTAL MYTH, MASSIVE STUDY CONCLUS
• NO ‘GAY GENE’: MASSIVE STUDY HOM ON GEIC BASIS OF HUMAN SEXUALY
• WHAT DO THE NEW ‘GAY GEN’ TELL ABOUT SEXUAL ORIENTATN?
• THE 'GAY GENE' IS A MYTH BUT BEG GAY IS 'NATURAL,' SAY SCIENTISTS
• THE REAL STORY ON GAY GEN
• WHY ARE PEOPLE GAY? GAY BY CHOICE OR IS BEG GAY GEIC?
• SEARCH FOR 'GAY GEN' COM UP SHORT IN LARGE NEW STUDY
• THERE’S NO EVINCE THAT A SGLE ‘GAY GENE’ EXISTS
• THE LIFE OF THE GAY GENE: OM HYPOTHETIL GEIC MARKER TO SOCIAL REALY
• THERE’S (STILL) NO GAY GENE

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

It is worth keepg md that this study only vers some typ of sexualy — gay, lbian and cis-straight — but don’t offer many sights to genr inty. 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.

“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.

SCIENTISTS QUASH IA OF SGLE 'GAY GENE'

“We worried a lot about volunteer bias, ” said Bailey, whose rearch clus a wily publicized study on Xq28 and gay brothers om 2018. 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.

Those who nsir beg gay a disadvantage life (which still is, certa societi), might regard gay people differently if they knew that beg gay was an hered tra, rather than a nsequence of life events, such as a particular type of upbrgg, or mixg wh certa sorts of iends or even a liberate cisn. An early study claimed that if one pair of (male) intil tws (who have intil geic patterns) was gay, there was a 100 percent chance of the other one also beg gay. It was quickly shown that, fact, the real chance of two intil tws beg gay was around 40-50 percent, whereas was ls non-intil on, though still somewhat greater than the general populatn.

There was another, much smaller, group who said they were entirely gay (about 6 percent), and a stterg of even smaller numbers who claimed to be bisexual. A vast new study has quashed the ia that a sgle “gay gene” exists, scientists say, stead fdg homosexual behavur is fluenced by a multu of geic variants which each have a ty rearchers pare the suatn to factors termg a person’s height, which multiple geic and environmental factors play rol. “The rults suggt we shouldn’t be measurg sexual preference on a sgle ntuum om straight to gay, but rather two separate dimensns: attractn to the same sex and attractn to the oppose sex.

THE 'GAY GENE' IS A TOTAL MYTH, MASSIVE STUDY CONCLUS

It also relied on self-reported ia that geics might play a role same-sex attractn was propelled to the spotlight 1993 when Dean Hamer, a scientist at the US Natnal Cancer Instute, and his team found lks between DNA markers on the X chromosome and male sexual fdgs ed nsirable ntroversy, wh the media dubbg the disvery the “gay gene”. No dividual gene alone mak a person gay, lbian or bisexual; stead, thoands of gen likely fluence sexual orientatn, a massive new study of the genom of nearly half a ln people human societi and both sex, between 2% and 10% of people report engagg sex wh a member of the same sex, eher exclively or addn to sex wh a member of the oppose sex, the rearchers said. Related: 5 Myths About Gay People Debunked"Bee is a ntroversial topic, fundg has historilly been limed and recment of participants was difficult, " study -thor Fah Sathirapongsasuti, a senr scientist and putatnal blogist at the geic ttg pany 23andMe, told Live Science.

NO ‘GAY GENE’: MASSIVE STUDY HOM ON GEIC BASIS OF HUMAN SEXUALY

However, the fdg that there's no sgle gay gene do not mean that sexual orientatn is not geic or blogil, and is therefore a liftyle choice. 13 Facts on the History of Marriage51 Sultry Facts About Sex10 Milton Gay Rights HistoryOrigally published on Live Science.

“There is no ‘gay gene’, ” says lead study thor Andrea Ganna, a geicist at the Broad Instute of MIT and Harvard Cambridge, and his lleagu also ed the analysis to timate that up to 25% of sexual behavur n be explaed by geics, wh the rt fluenced by environmental and cultural factors — a figure siar to the fdgs of smaller studi. We have known for s that sexual orientatn is partly herable men, thanks to studi of fai which some people are straight and some people are gay. In 1993, geic variatns a regn on the X chromosome men were lked to whether they were heterosexual or homosexual, and 1995, a regn on chromosome 8 was intified.

WHAT DO THE NEW ‘GAY GEN’ TELL ABOUT SEXUAL ORIENTATN?

Grave’s disease is more mon gay than straight men, and some rearch suggts that gay men tend to be thner – which might possibly be a rult of thyroid overdrive. There have been studi suggtg that there is a geic element to homosexualy women, but more rearch has been done men, says Sanrs.

The latt fdgs open the prospect to intifyg the whole pathway of gen volved both homosexual and heterosexual orientatn, says Dean Hamer at the US Natnal Instut of Health, who led the study that ppoted chromosome X back 1993. The news this week that the largt study of s kd failed to nfirm the existence of a "gay gene" is not so much a disappotment for those lookg to unrstand the LGBTQ muny, as is an acknowledgement that science do not need to tell what should be plaly obv: gays, lbians, bisexuals and pansexuals are who they are.

But here's the quote that will light opponents of LGBTQ rights, some of whom sist they n "nvert" gay people to choose to be straight by prayg the gay away:. "There is no ‘gay gene’ that term whether someone has same-sex partners, ” said Ganna, who is also a geicist at the Broad Instute of MIT and Harvard as well as the Universy of Helski.

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

While the variatns the gen are not enough to raise a rabow flag and label anyone as unqutnably gay, the rearchers say the blogil variants may at the very least partly fluence sexual behavr.

THE REAL STORY ON GAY GEN

This new rearch, he said “provis even more evince that beg gay or lbian is a natural part of human life, a ncln that has been drawn by rearchers and scientists time and aga. This new rearch also renfirms the long tablished unrstandg that there is no nclive gree to which nature or nurture fluence how a gay or lbian person behav.

Geics nnot tell "the whole story, " as Eric Vila, director of the Center for Geic Medice Rearch at Children’s Natnal Health System, told the Post, about what "mak" somebody gay.

However, blogists have documented homosexual behavr more than 450 speci, argug that same-sex behavr is not an unnatural choice, and may fact play a val role wh populatns.

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

The 2019 study is the latt a hunt for “gay gen” that began 1993, when Dean Hamer lked male homosexualy to a sectn of the X chromosome. As the ease and affordabily of genome sequencg creased, addnal gene ndidat have emerged wh potential lks to homosexual behavr. So-lled genome-wi associatn studi intified a gene lled SLITRK6, which is active a bra regn lled the diencephalon that differs size between people who are homosexual or heterosexual.

” For example, certa gen women help crease their fertily, but if the gen are exprsed a male, they predispose him toward homosexualy. While there is no sgle “gay gene, ” there is overwhelmg evince of a blogil basis for sexual orientatn that is programmed to the bra before birth based on a mix of geics and prenatal ndns, none of which the fet choos. Still others, backg the same e, disurage any vtigatn to the blogil origs of sexual orientatn, fearful that posive rults will lead to attempts to rid the world of potential homosexuals.

SEARCH FOR 'GAY GEN' COM UP SHORT IN LARGE NEW STUDY

For them, the disvery of how an dividual be gay is likely to shed light on how sexualy-related gen build bras, how people of any persuasn are attracted to each other, and perhaps even how homosexualy evolved.

THERE’S NO EVINCE THAT A SGLE ‘GAY GENE’ EXISTS

Hamer had jt published a study that claimed not only to have fally proved that male homosexualy was at least partially geic but also to have ppoted the stretch of chromosome where one of the gen volved rid. Hamer and his lleagu nducted extensive terviews wh 76 pairs of gay brothers and their fay members and found that homosexualy seemed to be hered through the maternal le. Studi have shown that women rpond to all typ of sexual pictns—not only heterosexual and homosexual imag but even those of chimpanze havg sex.

THE LIFE OF THE GAY GENE: OM HYPOTHETIL GEIC MARKER TO SOCIAL REALY

For a long perd NIH grant proposals that clud words like “gay, ” “ndom, ” or even “sexualy” were turned down, much to the ire of rearchers like Hamer. Shortly after he published his gay brothers study, Hamer pleted a siarly signed fay study lookg to a geic e for a certa kd of anxiety. Yet Hamer ntends that his rults suggt there is a lk to Xq28 and that the Rice study was biased bee one of the thors told Hamer that he didn’t believe a gay gene uld exist.

THERE’S (STILL) NO GAY GENE

Whether or not a gay gene, a set of gay gen, or some other blogil mechanism is ever found, one thg is clear: The environment a child grows up has nothg to do wh what mak most gay men gay. Ially, Bocklandt would sn the genome of each dividual, lookg for a methylatn pattern anywhere on any chromosome that shows up repeatedly the gay member of each tw pair. Alan Sanrs, an associate profsor of psychiatry at Northwtern, will be lookg at the whole genome of about 1, 000 gay brothers g the geic marker technique that Hamer ed.

By settg up a stand at Gay Pri paras and approachg “gay iendly” groups like PFLAG (Parents, Fai and Friends of Lbians and Gays), Sanrs has found more than 4, 000 gay men wh a brother who are terted participatg. He has already started mappg the first 500 and timat that by mid-2008 the world will know where—if anywhere—to fd the gay gene. ” The qutn of whether there is a gay gene—and if so, where ris—is hardly the only qutn about sexual orientatn that remas unanswered.