Regions on two chromosomes seemed to differ the most between people who identified as gay and those who identified as straight, according to a study published in Scientific Reports on Thursday. However, on the whole, the genomes of gay and straight men were not significantly different. However, these results come with a raft of caveats.
Gary John Norman Getty Images Advertisement The reasons behind why people are gay, straight or bisexual have long been a source of public fascination.
Indeed, research on the topic of sexual orientation offers a powerful window into understanding human sexuality.
Among the indigenous Zapotec people in southern Mexico, individuals who are biologically male and sexually attracted to men are known as muxes.
They are recognized as a third gender: Muxe nguiiu tend to be masculine in their appearance and behavior; muxe gunaa are feminine. In Western cultures, they would be considered gay men and transgender women, respectively.
Several correlates of male androphilia—sexual attraction of biological males to men—have been shown across different cultures, which is suggestive of a common biological foundation among them.
For example, the fraternal birth Homosexuality and dna effect—the phenomenon whereby male androphilia is predicted by having a higher number of biological older brothers—is evident in both Western and Samoan cultures.
Thus, if a similar pattern regarding separation anxiety were to be found in a third, disparate culture—in the case of the state of Oaxaca in Mexico—it would add to the evidence that male androphilia has biological underpinnings.
The recent study included heterosexual women, heterosexual men, and muxes 61 muxe nguiiu and muxe gunaa. Study participants were interviewed using a questionnaire that asked about separation anxiety—more specifically, the distress and worry they experienced as a child in relation to being separated from a parental figure.
Participants rated how true each question was for them when they were between the ages of six and There were also no differences in anxiety scores between women and muxe nguiiu or muxe gunaa, or between the two types of muxes.
Biological mechanisms, however, offer a more compelling account. On top of these observations, studies in molecular genetics have shown that Xq28, a region located at the tip of the X chromosome, is involved in both the expression of anxiety and male androphilia.
This work suggests that common genetic factors may underlie the expression of both. Twin studies additionally point to genetic explanations as the underlying force for same-sex partner preference in men and neuroticisma personality trait that is comparable to anxiety.
The research points to childhood separation anxiety as a culturally universal correlate of androphilia in men. As it stands, sexual orientation research will continue to evoke widespread interest and controversy for the foreseeable future because it has the potential to be used—for better or worse—to uphold particular sociopolitical agendas.
The moral acceptability of homosexuality has often hinged on the idea that same-sex desires are innate and immutable and therefore not a choice.
This is clear when we think about how previous beliefs around homosexuality being learned were once used to justify now discredited attempts to change these desires.
The cross-cultural similarities evinced by the Lethbridge study offer further evidence that being gay is genetic, which is, in itself, an interesting finding. But we as a society should challenge the notion that sexual preferences must be nonvolitional to be socially acceptable or safe from scrutiny.
And have you read a recent peer-reviewed paper that you would like to write about? Please send suggestions to Mind Matters editor Gareth Cook. Gareth, a Pulitzer prize-winning journalist, is the series editor of Best American Infographics and can be reached at garethideas AT gmail.The hypothesis that there is a genetic element to homosexuality has floated around for a while; gay twins are surely enough to prompt suspicion on the matter.
Your DNA sequence has got to be. Summary: The official explanation from the APA says that there is no consensus about what causes homosexuality. But we have observed eight predisposing factors that are common in the backgrounds of men with same-sex attraction.
The law of chastity of The Church of Jesus Christ of Latter-day Saints (LDS Church) states that "sexual relations are proper only between a man and a woman who are legally and lawfully wedded as husband and wife." In principle, this commandment forbids all same-sex sexual behavior (whether intra-marriage or extramarital).
Homosexuality-related violations of the law of chastity may result in. Genes linked to homosexuality have been discovered by scientists in the biggest ever study into the genetic basis for sexual orientation.
They discovered that DNA was different for gay and. A very valuable source of information before you consider your DNA testing for personal health and especially family planning.
An eye opener for considerations to use DNA testing for . Hosted by author, activist, and counselor, Jesse Lee Peterson, The Fallen State is a unique weekly TV program that focuses on relationships, human nature, religion, and societal ills with open.