The gay gene not

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He studies the biology of sexual orientation and the implications for mental health and is the co-author of Born Gay? But it wouldbe wrong to say homosexual behaviour is hard-coded in genes. Homosexuality is quite common throughout the animal kingdom. A lot of research has been conducted on male homosexuality. From around the web. Scientific evidence says otherwise. Sex hormones in prenatal life play a role.

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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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Born this way? An evolutionary view of ‘gay genes’

Male homosexuality, more than its female variant, has repeatedly been shown to be tightly linked to genes. It points strongly to a biological origin for our sexualities. If their sisters, mother and aunts have more kids who share some of their genes, it would make up for the fewer children of gay males. This is a huge selective advantage that a male-loving allele confers on women, and offsets the selective disadvantage that it confers on men. Sex hormones in prenatal life play a role. To science, homosexual behaviour is as normal as yawning. Threads collapsed expanded unthreaded.

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Genes could themselves nudge one towards a particular sexual orientation or genes may simply interact with other environmental factors such as sex hormones in the womb environment to influence later sexual orientation. Social constructionist accounts generate no hypotheses about sexual orientation and are not subject to systematic testing. By continuing to use our website you consent to all cookies in accordance with our cookie policy. It is now accepted in science that genetics, in subtle ways, influence the complex sexual orientation in humans. The latest research is one such development.

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