What do the new ‘gay gen’ tell about sexual orientatn? | New Scientist

gay term gene

Why are people gay? Are they gay by choice or is beg gay geic? Are they born gay? Learn about the and reasons for beg gay.

Contents:

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

* gay term gene *

2% of women and men, rpectively, intify as gay. Dpe the numbers, many people still nsir homosexual behavr to be an anomalo choice. 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?

Two gene variants have been found to be more mon gay men. New Scientist looks at what this tells about the way blogy shap our sexualy * gay term gene *

The hunt for ‘gay gen’. 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.

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

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. In rats, manipulatn of hormon durg pregnancy produc offsprg that exhib homosexual behavr.

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

Why do homosexual behavr exist? Several hypoth have been advanced to expla how homosexualy n be beneficial perpetuatg faial gen.

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

Gay uncl and nts, for example, are “helpers the nt” that help raise other fay members’ children to nurture the fay tree. Another ia suggts that homosexualy is a “tra-off tra. ” For example, certa gen women help crease their fertily, but if the gen are exprsed a male, they predispose him toward homosexualy.

IS THERE A “GAY GENE"?

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.

THERE’S (STILL) NO GAY GENE

There is no sgle gene rponsible for a person beg gay or a lbian.

The study of nearly a half ln people clos the door on the bate around the existence of a so-lled “gay gene. In s stead, the report fds that human DNA nnot predict who is gay or heterosexual.

*BEAR-MAGAZINE.COM* GAY TERM GENE

What do the new ‘gay gen’ tell about sexual orientatn? | New Scientist .

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