Truth Wins Out applauded a new study today that shed some light on the origins of sexual orientation. Researchers at Northwestern University tested the DNA of more thangay gene 400 gay brothers and heterosexual members of their families. The work identified two areas on the male genome that are likely to be linked to sexuality.

“Sexual orientation is not a choice and the evidence is quite clear that it is caused by biological factors,” said Truth Wins Out Executive Director Wayne Besen. “This study helps further debunk myths and misconceptions spread by anti-gay activists who falsely portray homosexuality as unnatural.”

The discovery by a team led by Dr. Alan Sanders of Northwestern University is critically important because it helps confirm a landmark 1993 study by Dr. Dean Hamer, who at the time was a researcher at the US National Cancer Institute. Truth Wins Out contacted Hamer today for a reaction:

“It’s gratifying to see our work on the role of Xq28 in male sexual orientation so strongly replicated,” said Dr. Hamer. “Twenty years was a long time to wait, but it was worth it for the confirmation that human sexual orientation is a natural, innate part of the human makeup.”

Truth Wins Out is the leading advocacy organization that studies the science of sexual orientation. In 2013, TWO launched the website, LGBT Science, and interviewed Dr. Sanders about his upcoming study. According to Sanders (exclusive TWO video available for bloggers and journalists):

“We are looking for a series of markers that show linkage on the various chromosomes. Probably the main thing is that the Xq28 [Dean Hamer’s genetic study] finding seems to be supported in a pretty large sample. And there probably is some gene or genes in that region contributing to variation of the trait.”

Truth Wins Out (TWO) is a non-profit organization that works to demolish the very foundation of anti-gay prejudice. Our philosophy is simple: We attack the underpinnings of homophobia by debunking harmful lies, discrediting hateful myths, and countering anti-gay organizations. By chipping away at the underlying ignorance that fuels anti-LGBT attitudes, we can ultimately win our fight for fairness and achieve full equality for gay, lesbian, bisexual, and transgender people worldwide.