The Independent. They concluded: "There is no scientific basis for distinguishing between same-sex couples and heterosexual couples with respect to the legal rights, obligations, benefits, and burdens conferred by civil marriage. Males inherit only one X chromosome — the one from their mother — and if it includes the gene that Francitas Gay Men gayness in males and fecundity in females, he Francitas Gay Men likely to be gay while his mom and her female relatives are likely to have lots of kids.
Ellis et al. Adults: National Health Interview Survey, Understand important health issues for gay men and men who have sex with men — from sexually transmitted infections to depression — and get tips for taking charge of your health.
Retrieved 18 November This site complies with the HONcode standard for trustworthy health information: verify here. Retrieved 13 January That study and subsequent research consistently failed to produce any empirical or scientific basis for regarding homosexuality as a disorder or abnormality, rather than a normal and healthy sexual orientation.
The motivations for and implications of these behaviors have yet to be fully understood, since most species have yet to be fully studied. The research must measure some characteristic that may or may not be defining of sexual orientation.