Although the exact function of the oSDN is not fully known, its volume, length, and cell number seem to correlate with sexual orientation, and a dimorphism in its volume and of cells could bias the processing cues involved in partner selection. Most of the data suggests that homosexual rams, like female-oriented rams, are masculinized and defeminized with respect to mounting, receptivity, and gonadotrophin secretion, but are not defeminized for sexual partner preferences, also suggesting that such behaviors may be programmed differently. Retrieved 13 June This will make a gender-conforming child feel different from opposite-gender children, while gender-nonconforming children will feel different from children of their own gender. The relationship between biology and sexual orientation is a subject of research.
The previous research also indicated that grave disease had been seen more in gay men than in straight men.
This study was criticized for its vaguely described method of recruiting twins and for a high rate of psychiatric disorders among its subjects. Equal protection analysis in U. Research conducted in Sweden  has suggested that gay and straight men respond differently to two odors that are believed to be involved in sexual arousal. Rights and legal issues.
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