So, the theory has been reversed. I’m sure there were studies of identical twins that indicated their was no genetic link and that their sexual orientation was a choice. Not really a good research piece, as the two sets of genes ‘at play’ could have resulted from epigenetic changes due to the participants living a homosexual lifestyle.
That research, the first to find evidence of a ‘gay gene’, created a storm of controversy, which was further fuelled when other scientists failed to find a genetic link.
Dr Michael Bailey from Northwestern University in Illinois, who contributed to the latest study, said it is the biggest of its kind.
He added: ‘Sexual orientation has nothing to do with choice. Our findings suggest there may be genes at play – we found evidence for two sets that affect whether a man is gay or straight.
‘Although this could one day lead to a pre-natal test for male sexual orientation, it would not be very accurate, as there are other factors that can influence the outcome.’
Despite this, he would not would not object to a prenatal test being developed.
He said: ‘Clearly parents should not be allowed to torture or kill babies. But they can currently choose to terminate a pregnancy early on, so the**y should be allowed to have as much information on the future child as possible.’*