Y chromosomes in women: actually very common

Bramblethorn

Sleep-deprived
Joined
Feb 16, 2012
Posts
18,258
http://www.nytimes.com/2013/09/17/science/dna-double-take.html?_r=0

"In 2012, Canadian scientists performed autopsies on the brains of 59 women. They found neurons with Y chromosomes in 63 percent of them. The neurons likely developed from cells originating in their sons."

It's long been known that it's possible for a human to have more than one set of DNA, via one mechanism or another. But until recently these cases were only very rarely detected. Now that DNA testing is becoming easier and cheaper, and scientists are going out of their way to look for chimera/mosaic conditions, it looks as if it's very common.

So the next time somebody tells you that God made men with XY chromosomes and women with XX and that's just the way it is...
 
Not being a chromosomeoligist ...
But I've heard friends mention the rare Androgen Insensitivity syndrome where a person can have XY on their 23rd autosome but, because of a fault in their AIS, which is responsible for the gene cascade triggered by components the Y chromosome, they develop into girls.
Interesting work and again exposes the folly of making inflexible rules in science.
Thanks for prompting questions :)
 
Last edited:
Back
Top