Sexual orientation in twins

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The relationship between biology and sexual orientation is a subject of research. While scientists do not know the exact cause of sexual orientation, they theorize that a combination of genetic, hormonal, and social factors determines it. Hypotheses for the impact of the post-natal social environment on sexual orientation, however, are weak, especially for males.

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Sexual orientation is an enduring pattern of romantic or sexual attraction (or a combination of these) to persons of the opposite sex or gender, the same sex or gender, or to both sexes or more than one attractions are generally subsumed under heterosexuality, homosexuality, and bisexuality, while asexuality (the lack of sexual attraction to others) is sometimes identified as the. Sexual orientation: an enduring sexual attraction toward either members of either one's own sex (homosexual orientation), the other sex (heterosexual attraction), or both sexes (bisexual orientation).

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Born Gay? Learn if sexual orientation is determined at birth. Whether sexual orientation is a trait we are born with (nature) or is caused by the environment we are raised in (nurture) has been debated by scientists, religious leaders, elected officials, and the general public. May 31, · GWAS (genome-wide association studies) for psychiatric illnesses may be about to become a victim of their own idea behind these studies is that common genetic variation – ancient mutations that segregate in the population – may partly underlie the high heritability of common psychiatric and neurological disorders, such as schizophrenia, autism, epilepsy, ADHD, depression, .

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Studies to determine what causes sexual orientation. Prejudice against gays and lesbians: Many people believe that prejudice against gays and lesbians will melt away if the public were to accept the belief that a person's sexual orientation is mainly determined by genes. May 01, · The relative contributions of genetic and environmental factors to the development of gender identity have been debated. Twins were studied that are concordant or discordant for gender identity status in order to provide clarification of this issue. An extensive library search yielded reports of .

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Family and twin studies suggest that genes play a role in male sexual orientation. We conducted a genome-wide association study (GWAS) of male sexual orientation on a primarily European ancestry. Dec 05, · Lisa Diamond discussed her research on the fluidity of same-sex and other-sex attraction, and the similarities and differences in patterns of fluidity between men and women, Oct. 17, as part of the Human Development Outreach and Extension Program. Diamond is a professor of psychology and gender studies at the University of Utah.

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Mar 25, · Gay people have been accused of being unfit parents, more likely to be pedophiles, unable to sustain lasting relationships, and worse. But research shows these . Questions about the biological basis of sexual orientation were first raised about a century ago when the British sexual liberators Havelock Ellis and Edward Carpenter argued that laws against same-sex sexual activities should be dropped because people engaging in such activities were biologically different from those with opposite-sex partners: they called such people "inverts".

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Oct 01, · Inner Ear Difference In Lesbians. Researchers at the University of Texas, Austin found that the cochlea (a structure of the inner ear) in lesbians differs from the cochlea of heterosexual women. There is a common belief among liberals that people are born either gay or straight. Conservatives tend to believe that sexual orientation is actually sexual preference, which is chosen by the individual. This page represents a review of the scientific literature on the basis for homosexual.

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Much like the media hype surrounding the alleged “gay gene,” a great deal of attention and speculation still surrounds the published study of the brains of 19 homosexual males. Simon LeVay studied a neuron group (known as INAH-3) in the anterior hypothalamus and noted a difference in size compared to that of a group comprised of 16 presumably heterosexual males and 6 females. Oct 08, · “Baby, I was born this way,” Lady Gaga sang in a hit that quickly became a gay anthem. Indeed, over the past 2 decades, researchers have .

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May 10, · Image caption James as a baby with his parents. At King's College London (KCL), researchers have been looking into the genetics of mental health. Studies into twins . Twins righthander Jake Odorizzi says the Twins' stretch of strong starting pitching, like his seven-inning, one-hit effort on Friday, is a result of pitchers, catchers and fielders all working together.

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The New Atlantis () was the title Francis Bacon selected for his fable of a society living with the benefits and challenges of advanced science and technology. Bacon, a founder and cham-pion of modern science, sought not only to highlight the potential of technology to improve human. Apr 04, · 'Is Ariana Grande bisexual?' Here's why that question is problematic. We don't need to put LGBTQ labels on celebrities who don't feel the need to label themselves.

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Peri Gilpin. AKA Peri Kay Oldham. Born: May Birthplace: Waco, TX. Gender: Female Race or Ethnicity: White Sexual orientation: Straight Occupation: Actor. Nationality: Unit. Twins born via a surrogate mother in , for which she paid $50, plus a trip to Hawaii. Father: Jim O'Brien (Philadelphia radio/TV personality, b. , d. Sep May 10, Local High School Students Lauded for Excellence in College-in-the-High-School Program. Columbia-Greene Community College held its third annual Celebration of Excellence, recognizing high- achieving students enrolled in C-GCC’s College-in-the-High School program..

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