The analysis, which examined the genomes of nearly half a million men and women, found that although genetics are certainly involved in who people choose to have sex with, there are no specific genetic predictors. Now, a new study claims to dispel the notion that a single gene or handful of genes make a person prone to same-sex behavior. Yet some fear that such a finding could be misused “cure” homosexuality, and most research teams have shied away from tackling the topic. A clear genetic link would suggest that gay people are “born this way,” as opposed to having made a lifestyle choice. Few aspects of human biology are as complex-or politically fraught-as sexual orientation.
