There’s no ‘gay gene,’ but geics are lked to same-sex behavr, new study says - The Washgton Post

Contents:

• THERE’S NO ONE ‘GAY GENE,’ BUT GEICS ARE LKED TO SAME-SEX BEHAVR, NEW STUDY SAYS
• HOW TO KNOW IF YOU ARE GAY
• WHY ARE PEOPLE GAY? GAY BY CHOICE OR IS BEG GAY GEIC?
• CAN SOCIETY MAKE PEOPLE GAY?

THERE’S NO ONE ‘GAY GENE,’ BUT GEICS ARE LKED TO SAME-SEX BEHAVR, NEW STUDY SAYS

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. 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.

HOW TO KNOW IF YOU ARE GAY

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. Wh multiple gene ndidat beg lked to homosexualy, seemed highly unlikely that a sgle “gay” gene exists.

Gay uncl and nts, for example, are “helpers the nt” that help raise other fay members’ children to nurture the fay tree. ” 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.

The rearchers say that, although variatns the gen nnot predict whether a person is gay, the variants may partly fluence sexual Ganna, lead thor and European Molecular Blogy Laboratory group lear at the Instute of Molecular Medice Fland, said the rearch rerc the unrstandg that same-sex sexual behavr is simply “a natural part of our diversy as a speci. Some of the variants were rrelated wh same-sex sexual behavr men, others women, and some Vila, director of the Center for Geic Medice Rearch at Children’s Natnal Health System, said the study marks the end of “the simplistic ncept of the ‘gay gene. Environmental effects may be a factor for some people; for stance, havg olr brothers creas the odds that younger brothers will be gay, which rearchers spect may have to do wh chang to the mother’s immune system rponse to the earlier Stok, chief programs officer for GLAAD, said a statement that the new rearch on the geics “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.

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

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.

Homosexualy may be triggered by environmental factors durg childhood after scientists found that geic chang which happen after birth n terme whether a man is straight or gay. The fdg is highly ntroversial bee suggts that some men are not born gay, but are turned homosexual by their surroundgs. Scientists studied 37 sets of intil male tws, who were born wh the same geic blueprt, to tease out which gen were associated wh homosexualy.

Only 20 percent of intil tws are both gay leadg rearchers to believe that there mt be which are not hered. They found that was possible to tell whether a man was gay or straight by monorg ty chang how his DNA functns after birth – a field known as epigeics.

CAN SOCIETY MAKE PEOPLE GAY?

And the scientists say that they n predict wh 70 per cent accuracy whether a man is gay or straight simply by lookg at those parts of the genome. Prof Tim Spector, Profsor of Geic Epimlogy, Kg's College London, said: “It has always been a mystery why intil tws who share all their gen n vary homosexualy.