Scientists may have found the ‘gay gene’ according to a new study published in the scientific journal Scientific Reports.
The study analysed the DNA of 2,000 men – 1,077 homosexual and 1,231 heterosexual, of mainly European ancestry.
It found regions on two chromosomes seemed to differ the most between people who identified as gay and those who identified as straight.
“Because sexuality is an essential part of human life — for individuals and society — it is important to understand the development and expression of human sexual orientation,” lead author Dr Alan Sanders told the UK’s Telegraph.
“The goal of this study was to search for genetic underpinnings of male sexual orientation, and thus ultimately increase our knowledge of biological mechanisms underlying sexual orientation.”
He added: “What we have accomplished is a first step for genome-wide study on the trait, and we hope that subsequent larger studies will further illuminate its genetic contributions.”