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  gay men and lesbian women may simply be the two ends of the same distribution.   the 2019 study is the latest in a hunt for gay genes that began in 1993, when dean hamer linked male homosexuality to a section of the x chromosome. 12 levay has recently completed a second book in collaboration with elisabeth nonas--city of friends--that surveys gay and lesbian culture it will be published by mit press in november.   zeke stokes, chief programs officer for glaad, said in a statement that the new research on the genetics provides even more evidence that being gay or lesbian is a natural part of human life, a.   what about women who are gay? Are there lesbian genes? Our biological understanding of homosexuality in women lags behind. Homosexuality is romantic attraction, sexual attraction, or sexual behavior between members of the same sex or gender. As a sexual orientation, homosexuality is an enduring pattern of emotional, romantic, andor sexual attractions to people of the same sex. It also refers to a persons sense of identity based on those attractions, related behaviors, and membership in a community of others. Other research has found that being gay or lesbian tends to run in families. Its also more likely for two identical twins, who share all of their genes, to both be gay than it is for two. 11, 2018 (healthday news) -- lesbian and gay couples might one day be able to produce offspring that share genetic traits from both parents, a study in mice has determined. Researchers with the chinese academy of sciences produced 29 healthy mouse pups from two mothers using stem cells and targeted gene editing, according to a.   in may 2000, the american psychiatric association issued a fact sheet, gay, lesbian and bisexual issues, which includes this statement. Its 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.   evidence from independent research groups who studied twins shows that genetic factors explain about 25-30 of the differences between people in sexual orientation (heterosexual, gay, lesbian.).

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