Sexual orientation, Biology and sexual orientation, Bisexuality

Science Does Not Support the Claim That Homosexuality Is Genetic By Robert Knight The debate over homosexual “marriage” often becomes focused on whether homosexuality is a learned behavior or a genetic trait. Many homosexual activists insist that “science” has shown that homosexuality is inborn, cannot be changed, and that therefore they should have the “right to marry” each other. Beginning in the early 1990s, activists began arguing that scientific research has proven that homosexuality has a genetic or hormonal cause. A handful of studies, none of them replicated and all exposed as methodologically unsound or misrepresented, have linked sexual orientation to everything from differences in portions of the brain,1,2 to genes,3 finger length,4 inner ear differences,5 eye-blinking,6 and “neuro-hormonal differentiation.”7 Meanwhile, Columbia University Professor of Psychiatry Dr. Robert Spitzer, who was instrumental in removing homosexuality in 1973 from the American Psychiatric Association’s list of mental disorders, wrote a study published in the October 2003 Archives of Sexual Behavior. He contended that people can change their “sexual orientation” from homosexual to

D.F. Swaab and M.A. Hofman, Brain Res. 537 (1990): 141-48, as cited in Dennis McFadden and E.G. Pasanen, “Comparisons of the auditory systems of heterosexuals and homosexuals: Click-evoked otoacoustic emissions,” Proceedings of the National. Academy of Science USA 95 (March 1998): 2709-13. 2 Simon LeVay, “A Difference in Hypothalamic Structure Between Heterosexual and Homosexual Men,” Science Vol. 253 (1991): 1034-37. 3 D.H. Hamer, S. Hu, V.L. Magnuson, N. Hu and A.M.L. Pattatucci, Science 261(1993): 321-27, as cited in McFadden. 4 B.J. Sigesmund, “Let Your Fingers Do the Talking,” Newsweek “Web Exclusive,” 31 March 2000. 5 McFadden and Pasanen. 6 “Sexual orientation ‘hard-wired’ before birth – startling new evidence revealed in the blink of an eye,” press release, University of...
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