Is there a "gay gene"? Major new study says no By Dennis Thompson August 29, 2019 / 8:33 PM / HealthDay There's no such thing as a single "gay gene" that drives a person's sexual behavior, concludes the largest genetic study ever conducted on the issue. Instead, a person's attraction to those of the same sex is shaped by a complex mix of genetic and environmental influences, similar to what's seen in most other human traits, researchers report. "This is a natural and normal part of variation in our species," said researcher Ben Neale, director of genetics with the Stanley...