{{Cquote|On July 16, 1993, it was reported in Science (pp. 291, 321) that geneticist Dean Hamer and his team at the [[National Cancer Institute]] had reported on a study involving 40 pairs of brothers both of whom were gay that had led them to conclude that they had discovered a factor on the X [[chromosome]] through which gayness was genetically transmitted to them from their mothers. This was hailed as proof that homosexuality in men is biological in origin. Two years later, however, Eliot Marshall reported in ''Science'' (June 30, 1995, p.268) George Ebers and George Rice of the University of Western Ontario had unsuccessfully attempted to replicate Hamer's findings and had "found no evidence that gayness is passed from mother to son" genetically. He also reported that the Office of Research Integrity in the Department of Health and Human Services was investigating Hamer's work.<ref>http://www.narth.com/docs/1996papers/silverman.html</ref>}}
{{Cquote|On July 16, 1993, it was reported in Science (pp. 291, 321) that geneticist Dean Hamer and his team at the [[National Cancer Institute]] had reported on a study involving 40 pairs of brothers both of whom were gay that had led them to conclude that they had discovered a factor on the X [[chromosome]] through which gayness was genetically transmitted to them from their mothers. This was hailed as proof that homosexuality in men is biological in origin. Two years later, however, Eliot Marshall reported in ''Science'' (June 30, 1995, p.268) George Ebers and George Rice of the University of Western Ontario had unsuccessfully attempted to replicate Hamer's findings and had "found no evidence that gayness is passed from mother to son" genetically. He also reported that the Office of Research Integrity in the Department of Health and Human Services was investigating Hamer's work.<ref>http://www.narth.com/docs/1996papers/silverman.html</ref>}}
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The research team, led by Dr George Rice of Canada’s University of Western Ontario, performed one of the biggest studies to date investigating whether there is a genetic cause of homosexuality and has failed to find any evidence for the existence of a so-called ‘gay gene’.<ref>{{cite web |title=No evidence for ‘homosexual gene’|url=https://creation.com/focus-214 |accessdate=September 27, 2013 |quote=One of the biggest studies to date investigating whether there is a genetic cause of homosexuality has failed to find any evidence for the existence of a so-called ‘gay gene’. The research team, led by Dr George Rice of Canada’s University of Western Ontario, initiated the study. It followed the earlier sensational claims of self-confessed homosexual Dr Dean Hamer and his team in 1993 purporting to have found a genetic link to homosexuality. Several years of frenzied research aimed at isolating the ‘homosexual gene’ proved fruitless. Now Dr Rice’s team, using a much larger study sample and sophisticated genetic tests, has found no evidence at all of any link between this marker and sexual orientation. The Independent, (U.K.), April 23, 1999, p. 5; Science, April 23, 1999, pp. 571, 665–667.}}</ref> For theories on genetic origin of homosexuality to be fact, however, there should never be a case when one identical twin is heterosexual and one is homosexual. It's genetically impossible since both identical twins share 100 percent of the same genes. If sexual behavior is genetic, then both identical twins will always be either heterosexual or homosexual. The findings however discredit such hypothesis and show that non-genetic factors play a significant part in shaping sexual preference.<ref>{{cite book |title=When Passions Are Confused|author=Jeff Olson|publisher=RBC Ministries, discoveryseries.org |year=1996 |pages=6–7 |url=http://jesus-revolution.com/Documents/When_Passions_Are_Confused_Understanding_Homosexuality.pdf}}</ref>
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The research team, led by Dr George Rice of Canada’s University of Western Ontario, performed one of the biggest studies to date investigating whether there is a genetic cause of homosexuality and has failed to find any evidence for the existence of a so-called ‘gay gene’.<ref>{{cite web |title=No evidence for ‘homosexual gene’|url=https://creation.com/focus-214 |accessdate=September 27, 2013 |quote=One of the biggest studies to date investigating whether there is a genetic cause of homosexuality has failed to find any evidence for the existence of a so-called ‘gay gene’. The research team, led by Dr George Rice of Canada’s University of Western Ontario, initiated the study. It followed the earlier sensational claims of self-confessed homosexual Dr Dean Hamer and his team in 1993 purporting to have found a genetic link to homosexuality. Several years of frenzied research aimed at isolating the ‘homosexual gene’ proved fruitless. Now Dr Rice’s team, using a much larger study sample and sophisticated genetic tests, has found no evidence at all of any link between this marker and sexual orientation. The Independent, (U.K.), April 23, 1999, p. 5; Science, April 23, 1999, pp. 571, 665–667.}}</ref> For theories on genetic origin of homosexuality to be fact, however, there should never be a case when one male identical twin is heterosexual and one is homosexual. It's genetically impossible since both male identical twins share 100 percent of the same genes. If sexual behavior is genetic, then both identical twins will always be either heterosexual or homosexual. The findings however discredit such hypothesis and show that non-genetic factors play a significant part in shaping sexual preference.<ref>{{cite book |title=When Passions Are Confused|author=Jeff Olson|publisher=RBC Ministries, discoveryseries.org |year=1996 |pages=6–7 |url=http://jesus-revolution.com/Documents/When_Passions_Are_Confused_Understanding_Homosexuality.pdf}}</ref>
Homosexual ''behavior'' [[Homosexuality and choice|is voluntary and subject to control by the human will]], just as heterosexual behavior is. Sex and intimacy, though, are basic necessities of human life, and acting on them, whether they be heterosexual or homosexual, is natural.
Homosexual ''behavior'' [[Homosexuality and choice|is voluntary and subject to control by the human will]], just as heterosexual behavior is. Sex and intimacy, though, are basic necessities of human life, and acting on them, whether they be heterosexual or homosexual, is natural.