Are triplets more likely to be gay

In general, men seem to be more category-specific in their sexual orientation while women on the other hand are more likely to demonstrate sexual fluidity [3]. The estimates of exclusive or preferred same-sex sexual inclination have varied between different studies. Twin pairs in which at least one twin is homosexual were solicited through announcements in the gay press and personal referrals from to the present.

An page questionnaire on the “sexuality of twins” was filled out by one or both twins. Thirty-eight pairs of monozygotic twins (34 male pairs and 4 female pairs) were found to have a concordance rate of % for homosexual. To be honest, this is more of a question for biology/psychology/social science. A simple answer might go something like: let's say 5% of people are gay (I don't know if that's true, just go with it for the example).

Then the chance of any pair of people being gay is * = %. But, this assumes independence. Two siblings are not independent - they share genetic and environmental. In a study where scientists looked at the sexual arousal patterns of identical twins with different sexualities—specifically, where one was gay and the other was straight—they found that gay twins demonstrated more genital arousal in response to same-sex images, whereas straight twins demonstrated more arousal in response to opposite-sex.

Several studies have shown that males who have more older brothers are more likely to be gay.² Scientists believe that the uterine environment may be responsible for this effect. It seems that this may be due to different proteins being developed in the uterus after multiple boys are born. Some gay men have a sexual fantasy involving sexual relations with a pair of MZ twins as a threesome.

Preimplantation genetic testing for aneuploidy PGT-A can be a helpful tool for reducing the rate of multiple pregnancy, especially in women 37 years of age or younger. Heritability is the probability that two individuals in a population would mate and produce offspring that show a particular character. However, respect for each patient's autonomy remains a critical aspect of the conversation.

Despite trying to reduce twin risks by transferring only a single embryo into the uterus, parents-to-be can still be surprised by identical twins when the first pregnancy ultrasound is performed. Doing this will give you the best possible chances of success.

If one twin is gay is the other

Elective single embryo transfer eSET is an increasingly common practice, but some fertility clinics may still offer multiple embryo transfers MET , especially in cases where a patient's embryos have a lower prognosis, or after repeated failed eSET cycles. Jackson, D. In addition, not all patients will choose to proceed with single embryo transfer, even after professional counseling. All three married heterosexually early in life, all had a single daughter, and all at about age 40 divorced, self-defined themselves as gay, and presently report very strong same-sex attractions.

By ABC News. Sexuality of male twins when one or both are homosexuals. Shaun C. Making the decision to proceed with selective reduction is emotionally complex for most patients. She can think of nothing in their rearing or family life that caused different sexual orientations.

The mother and non-twin sister of this pair were also interviewed and confirmed discordance for sexual orientation as well as other aspects of the lives of these twins. The Guinness Book of World Records told ABC News that they currently do not recognize the record title of the first male, gay couple in the world to be fathers to triplets with identical twins , but are currently researching. This is referred to as embryo grading.

The concordance rate for homosexuality in the former is This means there is a significantly greater risk of identical twinning with IVF pregnancies. Selective reduction also known as multifetal pregnancy reduction, or MFPR is the practice of reducing the number of fetuses in a multiple pregnancy, such as quadruplets, to a twin or singleton pregnancy. This practice is not legal in all countries.

Indeed, there is a rich sexual fantasy tradition about twins especially among gay men in gossip, folklore, pornography, and fiction. The UK's High Court has ruled that single parents cannot apply for a parental order to become the legal parent of a child born through surrogacy In this article: Does IVF increase my chances of twins?

The Menelaous have daytime and nighttime nurses to help care for their triplets. Zygosity was measured by the Nichols and Bilbro instrument which correlates highly with blood typing for zygosity. By transferring only one embryo during an IVF cycle, the chances of a healthy singleton pregnancy are maximized, and maternal risks are greatly reduced. For example, a twin pair where the index twin is a K-6 and the co-twin is a K-4 or K-3, is judged partially concordant.

This may reflect a tendency of DZ twins to separate psychologically and physically more than MZ twins. Jul 11, AM.