3 ms·
The Y Chromosome Now A Fraction of its Original Size
- masklinn 15y ago> The male sex would then become extinct, they fear, leaving women to invent some virgin-birth method of reproduction and propagate a sexless species. A fear which was, of course, always unwarranted since there are examples of species having shifted to different sex-determination processes after fully extinguishing their Y chromosome and losing SRY. And even then, the theoretical complete loss of Y in humans was millions years away in the worst case.