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Topic: Gay gene

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Genetics and sexual orientation

Dean Hamer

	The gay gene - EvoWiki (Site not responding. Last check: 2007-09-08)
		A gene on the X chromosome has been shown to be present in a significantly larger proportion of homosexuals to heterosexuals.
		Genes can have multiple effects, depending on the other genes with which they share their body, the environment in which they are expressed and the culture that also affects the characteristic.
		Genes are situated on 23 DNA molecules called chromosomes, and individuals inherit two copies of each molecule, one from each parent.
	wiki.cotch.net /index.php/The_gay_gene (2346 words)

	Is There a 'Gay Gene'?
		28, 2005 - The genes a man gets from his mother and father may play an important role in determining whether he is gay or not, according to a new study likely to reignite the "gay gene" debate.
		Genes on this chromosome are only passed to a son from his mother.
		Previous studies in male twins have suggested that between 40%-60% of the variability in sexual orientation is due to genes.
	www.webmd.com /content/article/100/105486.htm (393 words)

	Scientists identify gene for sexual behavior in male flies (12/96) (Site not responding. Last check: 2007-09-08)
		Their research is the first to pinpoint a single gene that works in the brain to govern nearly all aspects of a complex behavior in adult animals.
		A master gene that controls not only sexual orientation but all, or nearly all, the steps in the male fly's elaborate courtship ritual from its first interest in a female through its rhythmic courting song, to its attempts to mate.
		Important evidence that fru is the gene normally controlling most male sex behavior in the fruit fly comes from the fact that it fits in a hierarchy of genes that governs all other aspects of sex as well.
	www.stanford.edu /dept/news/relaged/961212behavgene.html (1096 words)

	More Evidence that Homosexuality is Genetic
		Thirty-three of the gay sibling pairs had coinherited genetic markers in the same chromosome region called Xq28, suggesting that 65 percent of the families studied were transmitting a gene for homosexual orientation.
		Hamer's study, reported in the journal Science, found that 33 of 40 pairs of gay brothers had identical regions on a tip of the X chromosome, suggesting that one or more genes at that location may be partially responsible for their sexual preference.
		While some gays embrace the idea that sexual orientation is innate and unchangeable, others worry that the emphasis on the biology of homosexuality is motivated by a desire to "fix" it with some kind of medical intervention.
	www.skeptictank.org /gaygene.htm (2442 words)

	Genetics and Society: Perspectives: Gay, Lesbian, Bisexual, and Transgender
		The notion that there might be a "gay gene" first became popular in 1993 when molecular biologist Dean Hamer pinpointed a genetic marker on the X chromosome supposedly linked to homosexual behavior in men.
		If gays and lesbians had equal access to adoption and fertility services and were not judged "unfit" to parent their own biological children because of their sexual orientation, all of society would benefit.
		He does not mention any evidence for, or controversy about, a "gay gene," but concludes that if a "safe and reliable genetic test" for sexual orientation were to become available, "parents should clearly be allowed" to use it, as long as they are permitted to select for homosexual as well as heterosexual children.
	www.genetics-and-society.org /perspectives/glbt.html (1409 words)

	The Gay Gene Research
		Hamer was able to deduce that if the "gay gene" was found on the Y chromosome then all gay men would have gay fathers and would only produce gay sons and straight daughters.
		If the gene were dominant then there would be significantly more lesbians than gay men because the gene would only have to appear on one of the X chromosomes in women.
		What confirmed his suspicion that the "gay gene" was located on the X chromosome, or the maternal side, was after compiling the data he had collected from finding out who in the families he had collected were gay.
	www.msu.edu /user/wethyeri/gaygene.htm (1751 words)

	LeVay Shares Thoughts On 'Gay Gene' Research
		In his study of 40 pairs of gay brothers, Hamer's group found a specific region of the X chromosome seemed to be associated with homosexuality.
		He added that the influence of genes on sexual orientation is believed to be stronger in men than it is in women.
		A proponent of gay rights and himself a gay man, LeVay believes that it is important for homosexuals to be seen as a discrete biological group or "natural kind" rather than as heterosexuals acting inappropriately.
	www-tech.mit.edu /V116/N27/levay.27n.html (700 words)

	Is there a gay gene? Genetic Futures - Y Touring Theatre Company
		Men receive an X chromosome from their mother and a Y chromosome from their father (women receive two Xs, one from each parent); because of this it is assumed that the possible ‘gay gene’ is inherited maternally.
		It is, however, extremely unlikely that there is a single ‘gay gene’ to determine such a complex thing as sexual orientation, but our genes may still influence the way in which our brain perceives sexuality and its interaction with the outside world.
		On the one hand, a homosexual man could claim that because he inherited this gene and did not choose a gay orientation by his own free will, he should not be discriminated against, or judged to be in any way, different to another member of society.
	www.geneticfutures.com /astronauts/info/sheet1.asp (1092 words)

	newsobserver.com \| Volunteers key to search for gay gene
		Genes are the instruction booklets in each human cell that direct the makeup and behavior of cells.
		As many as 12 percent of brothers of gay men are also gay, research says, compared with about 4 percent of men in general.
		Sanders says the same genes he expects to identify in gay men likely play a role in the sexual orientation of all men, offering insight into the biological blueprint shared by all humans.
	www.newsobserver.com /102/story/496662.html (1168 words)

	12/02/96 -- Features: The Gay Gene - What does it matter?
		The gay gene might mean an end to all of the standard arguments used to block our legal rights and may be enough to persuade legislators that discrimination on the basis of sexual orientation is unconstitutional.
		Parents might not be afraid if their kids have a gay teacher, and adoption agencies might be less reluctant to let gay couples adopt kids.
		Gays and lesbians are still fighting the heterosexual hegemony, both within our own families and in society at large.
	www.peak.sfu.ca /the-peak/96-1/issue6/gaygene.html (1443 words)

	Sniffing out the gay gene
		The difference in the brain responses of gay and straight men does not, by itself, prove that homosexuality is innate; after all, learned inclinations, like innate ones, must reside somewhere in the brain.
		Gay men generally report that their homosexual attractions began as soon as they felt sexual stirrings before adolescence.
		Others welcome the research because it shows that people don't "choose" to be gay and hence can't be criticized for it, nor could homosexuals convert the children in their classrooms or Scout troops even if they wanted to.
	www.iht.com /articles/2005/05/17/opinion/edpinker.php (722 words)

	Biology and sexual orientation - Wikipedia, the free encyclopedia
		Most scientists agree that it is unlikely that there is a single "gay gene" that determines something as complex as an homosexual orientation, and that it is more likely to be the result of an interaction of genetic, biological and environment factors.
		The so-called "gay uncle" theory posits that people who, themselves, do not have children may nonetheless increase the prevalence of their genes in future generations by providing resources (food, supervision, defense, shelter, etc.) to the offspring of close relatives.
		Gay brothers who showed this maternal pedigree were then tested for X chromosome linkage, using twenty-two markers on the X chromosome to test for similar alleles.
	en.wikipedia.org /wiki/Gay_gene (5039 words)

	Welcome to Stephen SG-1's Website
		the likelihood of the gene becoming penetrant appears to be largley depenent on the presence of the the testosterone hormone six to eight weeks after conception.
		It has not been proven that the 'the gay gene' exists, but its hard to ignore the possiblitiy.
		In the 1920s, one of the first things that was looked for was the gay gene - a genetic predisposition to homosexuality - largely because it was seen as criminal behaviour.
	www.angelfire.com /ma3/Zypher/gaygene.html (473 words)

	Augusta Georgia: technology@ugusta: New study questions 'gay gene' 04/23/99
		The first such evidence came in 1991, when researchers discovered that identical twins of gay men were much more likely to also be gay than were fraternal twins.
		Then National Cancer Institute geneticist Dean Hamer made headlines in 1993 by suggesting that one such gene resides in a region of the X chromosome, one of the microscopic structures that carry genes.
		Although Hamer never identified the gene itself, his research suggested its location by finding that 33 of 40 pairs of gay brothers shared certain genetic ``markers'' that heterosexual brothers didn't.
	chronicle.augusta.com /stories/042399/tec_gaygene.shtml (356 words)

	The Gay Gene
		Over the years (from 1991 to the present) the story of the so-called ‘gay gene’ is one indicative of scientific experiments and conclusions molding themselves into media forces that then seem to have a life of their own.
		In the July 19, 1993 edition of Science, Hamer reported that the linkage translated to a “99.5% certainty that there is a gene (or genes) in this area of the X chromosome that predisposes a male to become a heterosexual” (Hamer et al.
		Unfortunately, even though the homosexual gene research was hyped by the media, the region of the X chromosome yields no functional proteins that relate to this study.
	www.bio.davidson.edu /Courses/genomics/2002/Pierce/gaygene.htm (1724 words)

	Gay Orbit » No Abortion Because of Gay Gene™
		If a gay gene is discovered, and this type of thing becomes a problem, then by all means, make a law, and make the penalties very harsh.
		Second, if the gay gene/dna is conclusively found and can prove a fetus has the possibility of growing into a gay person, you can bet a whole lot of people who were once against abortion will be adding “unless” clauses to their beliefs.
		Gay Orbit is already all over this and proving that great minds think alike, Michael used the same word, grandstanding, to describe the congressman’s actions.
	gayorbit.net /index.php?p=839 (786 words)

	A Science Odyssey: People and Discoveries: Search for behavioral genes
		A self-proclaimed "obscure molecular geneticist," Dean Hamer, had conducted a study in the early 1990s that showed a correlation of a DNA marker on the X chromosome with homosexual men that was higher than random distribution would have been.
		Down's syndrome, too, is revealing of the role of genes in development of intellect: most Down's syndrome children are born with an extra copy of one chromosome.
		About half of the 50-100 thousand genes individuals inherit from their parents are thought to be involved in brain development.
	www.pbs.org /wgbh/aso/databank/entries/dh93ge.html (465 words)

	HPR \| The Myth of the Gay Gene, by Nicanor Austriaco, OP
		According to revisionist theologians and gay activists, homosexuality is natural because it is genetic, permanent and nonpathological.
		Returning to the questions raised by a possible future discovery of an authentic human gay gene, it is critical to realize that the Church’s teaching is not based upon a purely biological understanding of human nature.
		Gay activists often assert that homosexuality is natural because homosexual behavior has been observed in non-human animals.
	www.ignatius.com /magazines/hprweb/austriaco.htm (4902 words)

	CHICAGO SUN-TIMES :: Health :: Is there a gay gene?
		While 2 percent to 4 percent of all men are gay, 8 percent to 12 percent of brothers of gay men are gay.
		An identical twin who is gay is much more likely to have a gay twin than is a fraternal twin who is gay.
		But even though identical twins share the exact same genes, it's not unusual for one twin to be gay and the other twin to be straight.
	www.suntimes.com /lifestyles/health/72296,CST-NWS-gaygene26.article (413 words)

	The Gay Gene?
		For example, in response to the "gay gene" research, the Wall Street Journal headlined their report (which appeared the next day), "Research Points Toward a Gay Gene."[2] A subheading of the Journal article stated, "Normal Variation"-leaving the casual reader with the impression that the research led to this conclusion.
		The author of the lead article on genes and behavior in a special issue of Science notes:...the growing understanding that the interaction of genes and environment is much more complicated than the simple "violence genes" and "intelligence genes" touted in the popular press.
		Inherited means "determined directly by genes," with little or no way of changing the trait by choice, or by preventing it, or by modifying the environment in which the trait has emerged (or is more likely to emerge).
	www.s8int.com /notgenetic.html (4615 words)

	Gay News From 365Gay.com
		Researchers point to other studies of gay twins that suggest there may be a link between sexuality and genes.
		It is a possibility that a Maine state lawmaker raised last year when he proposed a bill making it illegal for women to end a pregnancy based on the projected sexual orientation of a fetus.
		State Rep. Brian Duprey said he is no supporter of gay rights, but that the bill was a reflection of his views on abortion.
	www.365gay.com /Newscon06/09/092606gene.htm (439 words)

	REPORT SUGGESTS HOMOSEXUALITY IS LINKED TO GENES (Site not responding. Last check: 2007-09-08)
		And even when they do have this gene on the X chromosome pinpointed, scientists said they will continue to search for other genes on other chromosomes that may be involved in sexual orientation.
		The ratio was far higher than for men in the general population, suggesting a gene or genes that is passed through the maternal line and thus through the X chromosome.
		The scientists then focused on gay brothers, on the assumption that if two boys in a family are homosexual, they were more likely to be so for genetic reasons than were those homosexual men without gay brothers.
	www-2.cs.cmu.edu /afs/cs.cmu.edu/user/scotts/bulgarians/nih-nyt.html (1225 words)

	CBC Radio \| Quirks & Quarks \| Nov. 26, 2005
		He found regions of men's brains that were different sizes in gay and straight men.
		Overall, a picture of genes associated with homosexuality is starting to emerge.
		They're moving genes from the hardiest life forms on earth, microorganisms that thrive in boiling water, into plants to help them survive in extremes of temperature.
	www.cbc.ca /quirks/archives/05-06/nov26.html (872 words)

	Is Homosexuality Genetic
		Nor have we said that [it] represents a "major" gene, only that its influence is statistically detectable in the population that we studied.
		You have a hunch that of innumerable genes of every imaginable sort likely to be "associated" or "linked" to BBP (you never use the word "causing" because you do not need to—no one knows the difference), there are some genes on, say the X-Chromosome.
		As one prominent gay activist researcher implied, all genetic things being equal, it is a whole lot easier to become "gay" in New York than in Utah.
	www.mission.org /jesuspeople/thegaygene.htm (4485 words)

	Ex-Gay Watch: Nature AND Nurture, 'Gay Gene' Geneticist Dean Hamer Says
		Dean Hamer is the geneticist whose groundbreaking 1992 research is periodically misused by exgay activists to conjure up an imaginary belief (among unnamed and impossible-to-find gay people) in a solitary "gay gene." Hamer was profiled Oct. 3 in The Philadelphia...
		It is ludicrous to suggest that I could cease being gay and become attracted to females through psychotherapy and religion for two simple reasons: I am not gay due to a mental health issue and two, I do not believe in god and organized religion.
		Since we all get genes from our mothers and from our fathers, and all fetuses begin as females, it would be surprising if there were a specific "gay" gene.
	www.exgaywatch.com /blog/archives/2005/10/nature_and_nurt.html (2308 words)

	The Gay Gene
		FOR EXAMPLE, in response to the "gay gene" research, the Wall Street Journal headlined their report (which appeared the next day), "Research Points Toward a Gay Gene."(2) A subheading of the Journal article stated, "Normal Variation"--leaving the casual reader with the impression that the research led to this conclusion.
		Time and time again, scientists have claimed that particular genes or chromosomal regions are associated with behavioral traits, only to withdraw their findings when they were not replicated.
		You have a hunch that of innumerable genes of every imaginable sort likely to be "associated" or "linked" to BBP (you never use the word "causing" because you do not need to--no one knows the difference), there are some genes on, say, the X-Chromosome.
	www.inplainsite.org /html/the_gay_gene.html (4487 words)

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