UNITED STATES, August 8, 2007 (LifeSiteNews.com) - Genes, environment, and self-agency determine human behavior says an expert on behavioral genetics, who also says that homosexual politics and not good science is behind the search for the "gay" gene.Douglas A. Abbott, PhD, a professor of Child, Youth, and Family Studies at the University of Nebraska, calls the "hypothetical evidence" for genetic determinism of homosexuality" both "overstated" and "overrated.""Except for the rare physical abnormalities (such as Huntington's Disease) at the present time, there is no evidence of a direct causative link between a single gene and complex psycho-social behavior such as sexual...