Quote:
Quote by: Rainbow  Try to notice please, that IF my ancestors had been homosexualists, I would not exist. |
Actually, Rainbow.. you can't say that.
Homosexuality doesn't prevent reproduction: Homosexuals reproduce and would therefore be able to pass on a genetic propensity for homosexuality, or "gay genes," to use the skeptic's term (GregBear, 1993). This is shown by sociological studies and surveys. A Kinsey Institute study supplies one source of hard data about the propensity of homosexuals to engage in heterosexual sex which could result in offspring: "Of 262 self-identified lesbian women, 75% had had sex with men since age 18 and 43% of those who had always identified themselves as lesbian had done so (Sanders, Reinisch, & McWhirter, 1990). It is not uncommon for gay men and lesbian women (often for religious or social reasons) to marry into a heterosexual relationship and sire children (Jones, 1978).
Perpetuity of deleterious genes: Being maladaptive or nonconducive to reproduction does not ensure that a genetic trait will disappear. Even fatal diseases caused by recessive alleles, such as sickle-cell anemia in its homozygous form, are not eliminated from the human gene pool. (And, remember, homosexuality is not fatal, and homosexuals often reproduce.) Deleterious heterozygous traits are maintained at low frequencies because if heterozygous, they are not expressed, and can be passed on perpetually, only causing problems when matched with another heterozygous genotype as a homozygous allele. Furthermore, natural levels of mutation offset the natural slow decrease in frequency through natural selection. Thus, if the frequency of such a disease is only one in ten thousand, to reduce the deleterious allele just tenfold would take 500 generations, or about twelve thousand years in a human population (GregBear, 1993; Fairbanks, 1993).
[source] Quote:
|
Quote by: Rainbow Except for fractional number with DNA related cases, it is a pathology. |
You're mistaken.
Twin studies: In multiple similar studies pairs of twins have been compared for sexual preference. A strong positive correlation between relatedness and similarity of sexual preference has been identified. Identical twins raised apart, for instance, are more likely to both be homosexual as adults (if one is homosexual) than fraternal twins, and both are more likely to share sexual orientation than genetically unrelated siblings raised together. Some twin studies have shown concordance rates as high as 100% (Friedman, 1988, p. 27). Based only on the data from these studies genetics can account for 31 to 74 percent of sexual orientation (GregBear, 1993; UPI no author, 1993; CNN Health Works, 1993; Bower, 1992; Puterbaugh, 1990). Based on such evidence Richard C. Pillard of the Boston University School of Medicine declared said, "Male sexual orientation is substantially genetic" (Bower, 1992).
An unchosen preference: There is no evidence to suggest that the sexuality of the majority of people, homosexual or heterosexual, is a result of a conscious choice on their part. Despite the frequently heard popular assertations that homosexuality is a choice (De Witt, 1992), the overwhelming majority of homosexual males and females indicate they never chose to become homosexual, but that they are that way innately (SteveD41, 1993, "Evidence"; GregBear, 1993). Those who would dismiss this point make the untenable mistake of believing in synchronized mass dishonesty, rather than accepting the stated feelings of homosexuals as indicators of (at least partially) natural biological drives.
Statistical information gathered from interviews with large numbers of American homosexuals and heterosexuals reveals a quantitative presence of feelings of difference in pre-homosexual children. Children who mature into adult homosexuals are behaviorally different from their pre-heterosexual counterparts in many ways, exhibiting "gender nonconformance," a refusal to act out traditional gender roles, from the age of 2 or 3 on, as well as a number of other developmental differences (Bell, Weinberg, & Hammersmith, 1981). The innate sex drive of homosexuals is so powerful a determinant of their behavior that many choose to respond to it, even while facing intense social and cultural pressure not to. Said one homosexual male, "our need to love others of our gender is innate. There is no choice involved" (Anecdotal accounts include: Leavy, 1993; Alex, 1993; SteveD41, 1993, "God made ").
Physical differences: Recent physiological studies have demonstrated physically detectable differences between homosexuals and heterosexuals. Simon LeVay's hypothalamus study (1991) found that the hypothalamus, "a part of the brain that helps regulate sexual behavior, was smaller in homosexual men than in heterosexual men; it was equivalent to the dimensions seen in heterosexual women" (Angier, 1992).
A second anatomical difference was subsequently discovered by Dr. Laura S. Allen and Dr. Roger A. Gorski of the University of California at Los Angeles. Allen and Gorski found that another brain structure, the anterior commissure, a "cord of nerve fibers that allows two halves of the brain to communicate with one another, is larger in homosexual men than it is in either heterosexual men or in women." LeVay said of he Allen-Gorski studies: "'I think the work is very good, and I think it's correct It's such a clear result, and in a sense it's more important than my own finding" (1992).
New findings support "a neuroendocrine predisposition for homosexuality" (study by Dr. Gunther Dorner and associates, as reported by Ellis, 1992). Other studies indicate hormonal differences in homosexuals (West, 1977).
Even with the increased number of studies being conducted, the "question of the basic origin of fixed homosexuality remains controversial" (Ellis, 1992). The trend is towards identifying biological factors which may lead to a predisposition for homosexuality, while leaving the door open for environment and experience as determining factors in individual behavior.
[source]