“Giant Step Forward”
A large-scale study of nearly 800 gay brothers found evidence of a genetic link for male homosexuality but the results aren’t strong enough to prove it, say researchers at North Shore University Health System Research Institute, IL. Researchers point to genes on the X chromosome and also found evidence of influence from genes on a different chromosome, although it didn’t identify the specific gene or genes. The new evidence “is not proof but it’s a pretty good indication” that sexual orientation is influenced by genes, said lead author Dr. Alan Sanders. Researcher Dr. Chad Zawitz said the research is “a giant step forward” toward answering questions about homosexuality. Being gay “is sort of like having certain eye color or skin color - it’s just who you are,” he said.