The largest-ever study has been conducted into the existence of a "gay gene" and its results leaves researchers believing the view that sexuality is a choice is discredited.
Conducted by the NorthShore Research Institute in the US, the study found clear links between two specific areas of the human genome and male homosexuality.
The genetic areas had also been associated with homosexuality in earlier studies.
Lead scientist Alan Sanders declared that the work "erodes the notion that sexual orientation is a choice". Read more »