STUDY: DNA of Intil Tws Can Reveal Who's Gay

NEW TW STUDY: PEOPLE NOT BORN GAY
JOHNS HOPKS REARCH: NO EVINCE PEOPLE ARE BORN GAY OR TRANSGENR
SOME RANDOM THOUGHTS ON ‘GAY GENE’ STUDI
THE 'GAY GENE' IS A TOTAL MYTH, MASSIVE STUDY CONCLUS
LARGT STUDY OF GAY BROTHERS HOM ON 'GAY GEN'
GAY MEN TW STUDY
YOUR GOOD HEALTH: WHY IS ONE ‘INTIL’ TW GAY, THE OTHER STRAIGHT?
SCIENTISTS FD DNA DIFFERENC BETWEEN GAY MEN AND THEIR STRAIGHT TW BROTHERS
STUDY: DNA OF INTIL TWS CAN REVEAL WHO'S GAY

NEW TW STUDY: PEOPLE NOT BORN GAY

Tw pairs which at least one tw is homosexual were soliced through announcements the gay prs and personal referrals om 1980 to the prent. An 18-page qutnnaire on the "sexualy of tws" was filled out by one or both tws. Thirty-eight pairs of monozygotic tws (34 male pairs … * gay identical twin study *

In a study where scientists looked at the sexual aroal patterns of intil tws wh different sexuali—specifilly, where one was gay and the other was straight—they found that gay tws monstrated more genal aroal rponse to same-sex imag, whereas straight tws monstrated more aroal rponse to oppose-sex imag [2]. N help expla why someone is gay or straight, relig or not, bray or not, and even whether they're likely to velop gum disease, one psychologist broad-rangg geic effects first me to light a landmark study — Mnota Tw Fay Study — nducted om 1979 to 1999, which followed intil and aternal tws who were separated at an early age. Most of the more recent rearch on possible blogil origs of homosexualy has foced on the gree to which gen, along wh other prenatal factors such as hormon and epi-geics, may fluence the velopment of homosexualy.

JOHNS HOPKS REARCH: NO EVINCE PEOPLE ARE BORN GAY OR TRANSGENR

* gay identical twin study *

The former approach of recg intil tws via advertisements gay and lbian publitns is now known to have a very strong “volunteer effect” that produced the appearance of relatively large geic effects (1). Neverthels, even wh the e of large tw registri, the number of intil tw pairs found wh homosexualy is often very small dividual studi, rultg a standard viatn that is greater than the lculated geic effect, meang that the rults are not statistilly different om zero.

Whehead and Whehead (1) have prented and discsed, some tail, the and other problems herent tw studi of homosexualy and have prented reasons to expect that the geic fluence on, or ntributn to, homosexualy will eventually be agreed to be the 10%-15% range (i. Schumm (9) found that children wh homosexual parents are 12-15 tim more likely than children of heterosexual parents to be homosexual as adults. This is the strongt environmental fluence ever reported for the velopment of homosexualy, and volv very close fay members, the parent-child relatnship.

The rults of a study by Kg and McDonald (8) illtrate how such a close, fay relatnship uld flate the lculated geic fluence on homosexualy intil tw studi. They studied 46 tw pairs havg homosexualy prent one or both of the tws each pair and found that 54% of the tw pairs had discsed their sexual orientatn wh each other, 89% had “shared knowledge” of each other’s sexual orientatn, and 30% of the tw pairs had actually had sex wh each other. Bee intil tws intify so closely wh each other, and post-natal experienc – pecially close fay relatnships – strongly affect the velopment of homosexualy, seems plsible, if not likely, that a homosexual member of a tw pair would fluence the other member of that pair to embrace and explore homosexualy also, th flatg the apparent geic fluence reported intil tw studi.

SOME RANDOM THOUGHTS ON ‘GAY GENE’ STUDI

That is to say, a signifint portn of what may appear, intil tw studi, to be a geic fluence on the velopment of homosexualy may turn out to be, stead, a post-natal, environmental fluence volvg shared knowledge of sexual orientatn and shared sexual experienc wh intil tw pairs. The “pair-wise nrdance” answers the simple qutn, “Where one tw of an intil pair is homosexual, what percentage of -tws is also homosexual”.

The pair-wise nrdance valu dite that for every tw pair wh both members beg homosexual, there are 7 tw pairs wh only one homosexual member.

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

Now, pare this rult to the range of theoretilly possible out where no tw pairs would both be homosexual (= 0%) and where all tw pairs would both be homosexual (= 100%) and you n see, tuively, that a pair-wise nrdance of only 13. Therefore, on the basis of pair-wise nrdance intil tws, seems appropriate to nclu that there is, at the most, only a mor geic ntributn to the velopment of homosexualy, and that this relatively mor fluence n be overe (i. This timate of nrdance is necsary orr to e both intil and aternal tws a study to disentangle the relative ntributns to homosexualy of geic and non-geic (environmental) factors.

LARGT STUDY OF GAY BROTHERS HOM ON 'GAY GEN'

While pair-wise nrdance giv an tuive ditn of the geic fluence on homosexualy as exprsed intil tws, do not provi rmatn on what factors may provi the remag, non-geic fluence. In a meta-analysis, Whehead (6), g the rults om seven of the recent tw registry studi that were signed to reveal ntributns of both geic and non-geic factors to homosexualy, found that the mean ntributn of geics to male homosexualy was around 22%, and to female homosexualy, around 33%.

GAY MEN TW STUDY

Furthermore, the non-shared, post-natal environmental ntributn to homosexualy is morate to strong, around 64%-78%, has a relatively small standard viatn and is nsistently around the same percentage (6), ditg that homosexualy is fluenced primarily by post-natal environmental factors and experienc that are not directly related to prenatal, blogil ntributns of any kd or batn. ) on the velopment of homosexualy adults is only weak-to-morate, is important to unrstand that all of the blogil theori bed n addrs only this weak-to- weakly morate amount of fluence, while ignorg the far more important post-natal fluenc (e. Furthermore, tw studi clearly support the ference, based on rults obtaed through therapy and unselg (4, 5), that post-natal, environmental fluenc have a far greater role the velopment of homosexualy than do pre-natal, blogil fluenc.

Consir the followg and ask yourself this qutn: Why are scientists workg to overe the geic irregulari but not homosexualy which is geilly unter productive?

Scholars at Johns Hopks Universy released a new report on Monday which argu that there is not sufficient evince to suggt that lbian, gay, or transgenr people are born wh this sexual orientatn or genr inty.

YOUR GOOD HEALTH: WHY IS ONE ‘INTIL’ TW GAY, THE OTHER STRAIGHT?

The three-part, 143-page report, which appeared the Fall 2016 edn of The New Atlantis, also vtigated other monly accepted ias about homosexualy and transgenrism. Mayer and his -thor Pl McHugh, a profsor of psychiatry and behavral scienc at Johns Hopks, challenged the claim that discrimatn and social stigma are the only reasons why homosexual and transgenr people suffer higher rat of mental health problems and are more likely to m suici. The study breaks down three parts: First, Mayer and McHugh examed whether homosexualy is an hered tra, and nclud that people are not simply “born that way.

” Send, they looked at the of the poor mental health associated wh gay and transgenr people, ncludg that social strs do not expla all of .

“Studi of the bras of homosexuals and heterosexuals have found some differenc, but have not monstrated that the differenc are born rather than the rult of environmental factors that fluenced both psychologil and nroblogil tras, ” the report explaed. There is virtually no evince that anyone, gay or straight, is ‘born that way’ if means that their sexual orientatn was geilly termed, ” the report explaed (emphasis add).

SCIENTISTS FD DNA DIFFERENC BETWEEN GAY MEN AND THEIR STRAIGHT TW BROTHERS

“But there is some evince om the tw studi that certa geic profil probably crease the likelihood the person later intifi as gay or engag same-sex sexual behavr.