Nsikan Akpan Nsikan Akpan. In its stead, the report finds that human DNA cannot predict who is gay or heterosexual. Sexuality cannot be pinned down by biology, psychology or life experiences, this study and others show, because human sexual attraction is decided by all these factors.
T hirty years since homosexuality was removed from the list of recognised mental disorders, scientists persist in searching for a "cause", refusing to accept that sexuality and sexual desire are social constructs, not biological or genetically determined. Last week saw the publication of the latest efforts to explain our odd attractions. Apparently, women who take slimming and thyroid pills during pregnancy are substantially more likely to have gay children, particularly lesbians.
Like size or intelligence, sexual attraction isn't defined by one gene alone but is instead the result of the complex interplay between multiple regions of the genome and hard to pin environmental factors. That's the conclusion of an analysis conducted on half a million DNA profiles as part of a giant study by researchers in Europe and the United States published in the influential journal Science on Thursday. Its authors hope to bury the notion, popularised in the s, of the existence of an all-powerful "gay gene" that determines sexuality in the way eye colour is defined.
All rights reserved. From an early age, E, as she prefers to be called for this story, hated wearing dresses, liked basketball, skateboarding, video games. When we met in May in New York City at an end-of-the-year show for her high school speech team, E was wearing a tailored Brooks Brothers suit and a bow tie from her vast collection.
There has been much debate about what causes homosexuality. People often wonder if there's a gay gene or if homosexuality is caused by environmental factors, such as upbringing, child molestation, an absent mother, or an affectionate father. Although there have been few studies on the cause of homosexualitythe debate seems to be divided, with scientists in one corner and religious fundamentalists in another.
Genetic discrimination occurs when people treat others or are treated differently because they have or are perceived to have a gene mutation s that causes or increases the risk of an inherited disorder. It may also refer to any and all discrimination based on the genotype of a person rather than their individual merits, including that related to race. Genetic discrimination takes different forms depending on the country and the protections that have been taken to limit genetic discrimination, such as GINA in the United States that protects people from being barred from working or from receiving healthcare as a result of their genetic makeup.
The International Gay Games puts a spotlight on equality, diversity and freedom of expression. They have gray hairs and bald heads. Many are over the age of
Jump to navigation. One of the arguments offered by those in support of homosexuality is that homosexuality is an orientation that people are born with and it has the same moral value as the hair color someone has at birth. The implication is that since they are said to be born gay, then it is normal and morally acceptable. The media seems to support this idea, and it is a common position held to justify the behavior.
Research into family member clustering of sexual orientation dates back to the s. This has included a search for the so-called gay gene. Current research is looking more broadly at genome-wide association studies GWAS among large numbers of people with different sexual orientations.
C HICAGO — The largest study of its kind found new evidence that genes contribute to same-sex sexual behavior, but it echoes research that says there are no specific genes that make people gay. The genome-wide research on DNA from nearly half a million U. The variants were more common in people who reported ever having had a same-sex sexual partner.