Sexual orientation and science Biology of gender Behavioural genetics. Student after student, while sobbing hysterically, said something like this: This perspective is incomplete because sexual orientation is defined in terms of relationships with others. The relationship between biology and sexual orientation is a subject of research. Charles Byrnell, Fleet, Hampshire You only need to look at studies involving identical twins. He studies the biology of sexual orientation and the implications for mental health and is the co-author of Born Gay? The fact that you cannot make a genetic male sexually attracted to another male by raising him as a girl makes any social theory of sexuality very weak.
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They are reflected in our psychology and the ways we relate to others. However, other studies have shown that the sexually dimorphic nucleus of the preoptic area, which include the INAH3, are of similar size in homosexual males who died of AIDS to heterosexual males, and therefore larger than female. Scientific Reports. Race is a non-moral issue and sexuality is a moral issue.
Why, then, do some men who have sex with men identify as gay, and others identify as heterosexual?