Scientific research gay genetics

He showed that pairs of brothers who were openly gay shared a small region at the tip of the X, and proposed that it contained a gene that predisposes a male to homosexuality. Equal protection analysis in U. The natural bell curve variation that occurs in biology and sociology everywhere, explains the variable spectrum of expression. J Pers Soc Psychol. This proposal is known as the "exotic becomes erotic" theory. Genes, Brain and Behavior. They conjure up the specter of the surgical or chemical "rewiring" of gay people, or of abortions of fetal homosexuals who have been hunted down in the womb.


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Biology and sexual orientation

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He showed that pairs of brothers who were openly gay shared a small region at the tip of the X, and proposed that it contained a gene that predisposes a male to homosexuality. Equal protection analysis in U. Corresponding estimates among women were. The researchers found a significant difference in INAH3 size between heterosexual men and heterosexual women. The biology of sexual orientation has been studied in detail in several animal model systems.


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University of California Press. If there are male-loving and female-loving alleles of tens or hundreds of genes battling it out in the population, everyone will inherit a mixture of different variants. Results from the first large, comprehensive multi-center genetic linkage study of male sexual orientation were reported by an independent group of researchers at the American Society of Human Genetics in In interviews to the press, researchers have pointed that the evidence of genetic influences should not be equated with genetic determinism. Sexual orientations Asexual Bisexual Heterosexual Homosexual. Some studies have found correlations between physiology of people and their sexuality; these studies provide evidence which suggests that:.


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