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Saturday, 9 December 2017

Scientists identify gene that makes men gay

Scientists have discovered genetic variants linked to homosexuality by analysing the entire DNA codes of gay and heterosexual men.They discovered that DNA was different for gay and straight men around two genes: SLITRK5 and SLITRK6.

The study, published in the journal Scientific Reports, is the first to look at the complete genome of over 1,000 homosexual men and compare it to genetic data from 1,231 heterosexual males.SLITRK6 is an important gene for brain development and is particularly active in the brain region which includes the hypothalamus.

The hypothalamus is crucial for producing hormones linked to control sex drive. Previous studies have shown that parts of it are up to 34 per cent larger in gay men.Researchers from North Shore University Health System (NSUHS) in the US also discovered differences in the TSHR gene, which is linked to the thyroid, 'The Telegraph' reported.

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