Fascinating article about how biological sex is potentially reversible… and how it seems to rely on the behavior of a single gene.
In mammals, males have XY chromosomes and females XX. The new research shows that another gene is responsible for switching women into men.
If the FOXL2 is switched on then the body grows ovaries, switched off and they are replaced by testicles.
But what really surprised the researchers is that the process continues after birth and the body remains in a constant tussle to either switch on or off the gene – even in adulthood.
I can’t find the original research, but here’s a neat little summary to check out. This is really exciting stuff that could turn perceptions of sex and gender topsy-turvy…