News for hackers. Stuff that matters.

A comment on Why Sex? Biologists Find New Explanations. Parent comment

Re:Why Sex? Biologists Find New Explanations by nootropicat on Friday April 24, 2020 @09:59AM (#22968000)
The existence of those mechanisms doesn't mean the increased variance from only one X chromosome disappears - for males to have equal variance the increase from just one X would have to be compensated somehow, which is probably impossible given how directly important X is - the needed information is gone.
[ Parent | on HN ]
Re:Why Sex? Biologists Find New Explanations by dogma1138 on Saturday April 25, 2020 @06:11AM (#22977064)
What I’m saying is that genetic variance and gene expression variance aren’t the same thing.

In fact in males there is a phenomenon that is called feminization of gene expression where by removing sexual competition causes gene feminization in males causing the population to more favorably express female bias.

https://www.nature.com/articles/ncomms4482

I can’t find the study now but similar results have been reported in humans especially in sperm and testicular tissue that begin experiencing gene expression feminization rather quickly in monogamous relationships.

[ Parent | on HN ]