Popular Culture Review Vol. 16, No. 2, Summer 2005 | Page 119

America’s New McCarthyism 115 associated with childhood gender nonconformity. Genetic evidence suggests a heritable component and putative gene loci on the X chromosome. Homosexuality may have evolved to promote same sex affiliation through a conserved neurodevelopmental mechanism. Recent findings suggest this mechanism involves atypical neurohormonal differentiation o f the brain. Key areas for future research include the neurobiological basis o f preferred sexual targets and correlates o f female homosexuality. ^ Their policy statements are available at www.hrc.org/Template.cfin?Section=Parenting &CONTENTlD=14082&TEMPLATE=/ContentManagement/ContentDisplay.cfin. ^ See “Out o f Focus on the Family: A Response to Arguments Against Same-Sex Marriage,” Popular Culture Review, 16:1 (February 2005), 45-75.