Current try to replicate 1993 “gay gene” learn highlights exact same DNA region, and one different
Dean Hamer ultimately seems vindicated. More than twenty years in the past, in a study that caused both systematic and cultural controversy, the molecular biologist supplied one immediate proof of a “gay gene,” by identifying a stretch regarding X chromosome most likely related to homosexuality. But a number of consequent research called their choosing into concern. Now the greatest separate replication work thus far, analyzing 409 pairs of gay brothers, fingers exactly the same area regarding the X. “when you find something out from the whole genome, you are always wanting to know if this had been just by chance,” claims Hamer, just who asserts that brand new research “explains the problem completely.”
However everybody else locates the results persuading. Plus the variety of DNA evaluation put, known as a genetic linkage study, has actually mostly started superseded by additional tips. As a result of the limitations with this approach, brand new services in addition doesn’t create what behavior geneticists actually crave: particular genes that may underlie homosexuality.
Few scientists have actually ventured into this line of data. As soon as the genetics of being homosexual arises at systematic meetings, “sometimes even behavioral geneticists type of wrinkle up their unique noses,” says Kenneth Kendler, a psychological geneticist at Virginia Commonwealth University in Richmond. Which is partially due to the fact research itself is thus complex. Researches comparing similar and fraternal twins recommend you will find some heritable element of homosexuality, but no one thinks that an individual gene or genetics can make you homosexual. Continue reading “Research of homosexual brothers may verify X chromosome link to homosexuality”