DNA differences are linked to having same-sex sexual partners
By Tina Hesman Saey. October 20, at In a large study of more thanmen and women in the United States, Genetic Kingdom and Sweden, researchers discovered four genetic variants that genetic more often in people who indicated on questionnaires that they had had same-sex sexual partners.
The other two influence sex partner choice for both men and women. Headlines and summaries of the latest Science News articles, delivered Tuesdays and Thursdays. Collectively, the DNA differences explained only 8 to 12 percent of the heritability of having same-sex partners. Researchers examined DNA data from more thanparticipants in the U. Biobank and more than 69, people who had their DNA tested by the consumer testing company 23andMe.
People who have given their DNA data to those research projects also answered a battery of questions, including ones about whether they had ever had a partner of the same sex and how many homosexuality partners they have had. The findings were replicated reggaeton pornvideos data from three other studies, including one from Sweden.
Giant study links DNA variants to same-sex behavior
Findings from such large studies are more likely to be replicated than the small studies in the past, Bailey says. Previous sexual orientation genetic studies, including some Bailey was involved in, may also have suffered from bias because they relied homosexuality volunteers.
People who offer to participate in a study, without being randomly selected, may not reflect the general population, he says. Men in the new study who said they have had same-sex partners, tended to be more exclusively homosexual than women were, Ganna and colleagues found.