The researchers concluded that is a gay gene was genetic material being passed down on the X chromosome which both promotes fertility in the mother and homosexuality in her male offspring. GenePlaza, for example, offers DNA-interpretation apps that purport to assess intelligence, neuroticism and taste perception.
The result also indicates that number of pregnancies, mothers of gay sons, particularly those with older brothers, had significantly higher anti-NLGN4Y levels than did the control samples of women, including mothers of heterosexual sons. Ellis et al. Retrieved 30 August Retrieved June 12, Steiner eds Clinical management of gender identity disorders in children and adults.
Research conducted in Sweden  has suggested that gay and straight is a gay gene respond differently to two odors that are believed to be involved in sexual arousal.
All rights reserved. Another issue is the finding that even monozygotic twins can be different and there is a mechanism which might account for monozygotic twins being discordant for homosexuality. So, exactly what fraction of the population do homosexuals actually represent? Michael; Martin, Is a gay gene R.
I did not prove that homosexuality is genetic, or find a genetic cause for being gay. Bem sought support from published literature but did not is a gay gene new data testing his theory. Hamer et al.
This was popularly dubbed the " gay gene " in the media, causing significant controversy. Views Read Edit View history. Sign in. Sexual differentiation Autism Narcissism Schizophrenia Stroke care. In other words, every identical twin of a homosexual subject was also homosexual, while this was not the case for non-identical twins.
The app cited the Science paper while warning users that it did not predict same-sex attraction.