Video

What does science actually say about whether there’s a gay gene?


It’s thought that between 2 and 6 percent of people identify as same sex attracted – but the jury is still firmly out on the science on why and how it occurs.

Is being gay genetic, and if so, is there a gay gene?

Well, as the boys from AsapSCIENCE explain, having a specific gay gene that can be passed on doesn’t make a lot of sense considering how few same sex couples have kids.

However, that being said, two studies in the 1990s found that gay men do have a higher number of homosexual relatives compared to heterosexual men.

This led the researchers to think that being gay had something to do with a linkage on their X chromosome.

 

As the video explains, this has also been found in newer studies – specifically a part of the X chromosome called Xq28.

But with 80 percent less children then straight couples, purely genetic inheritance of same sex attraction can be something of a paradox.

So it’s obviously more complicated than that – and that means that epigenetics gets involved.

A recent study looked at whether the attachment of a type of a methyl group (a type of epigenetic DNA change) changes your likelihood of same sex attraction.

The team were able to use that methyl groups to predict the sexuality of men with 70 percent accuracy.

However, it was a small population size, and there has been some controversy about the research.

So where does this leave us?

Well, I’ll let the AsapSCIENCE boys explain the rest in the video above, but there are quite a few interesting hypotheses about how being gay fits into the world.

 



Source link

Products You May Like

Articles You May Like

There’s a Surprising Downside to Having a Job That You Love, According to Science
A Strange Effect Has Been Expanding The Hidden Underwater Forests of The Arctic
Scientists Have Created The Loudest Possible Sound Underwater
Climate Breakdown Could Send Crabs And Octopuses Blind
These Mind-Boggling Images Are a Reminder of How Far Technology Has Come

Leave a Reply

Your email address will not be published. Required fields are marked *