The gay gene

Many researchers expressed skepticism about the results. Bailey , Nebraska Symposium on Motivation, Volume 54 p. In the full sample they did not find linkage to Xq Biological theories for explaining the causes of sexual orientation are favored by scientists [1] and involve a complex interplay of genetic factors, the early uterine environment and brain structure. Because of their temperament, which is influenced by biological variables such as genetic factors, some children will be attracted to activities that are commonly enjoyed by other children of the same gender. The Science of Desire: There have also been reports of variations in brain structure corresponding to sexual orientation.

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Putative Gay Genes Identified, Questioned

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Research conducted in Sweden [47] has suggested that gay and straight men respond differently to two odors that are believed to be involved in sexual arousal. The perceived causes of sexual orientation have a significant bearing on the status of sexual minorities in the eyes of social conservatives. Neurons of the oSDN show aromatase expression which is also smaller in male-oriented rams versus female-oriented rams, suggesting that sexual orientation is neurologically hard-wired and may be influenced by hormones. They think Neuroligin 4 Y-linked protein is responsible for a later son being gay. This study was criticized for its vaguely described method of recruiting twins and for a high rate of psychiatric disorders among its subjects.

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The Science of Sex, p. Psychological Perspectives, edited by Anthony R. However, despite such tenuous provenance, the gay gene has persisted as a reference in science news, popular science writings, and in press releases and editorials about biomedical research. The researchers found a significant difference in INAH3 size between heterosexual men and heterosexual women. Bem sought support from published literature but did not present new data testing his theory. Female relatives of the homosexual men tended to have more offspring than those of the heterosexual men.

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