If two man can have kids in omegaverse can they make new gender like with YY chromosome

Factcheck me on this, but I'm pretty sure I heard from somewhere that nobody is born without an x chromosome. There are variations like XX, XY, XXY, XXXY and XYYY (XX and XY being the most common), but I've never heard of a case where someone has only Y. Edit: I googled and I seem to be correct   1 reply

Not compatible with life.   reply

egg cells always carry the X chromosome. BUUUT that's only because that's how biology works in real life. women have XX chromosomes, so when they undergo meiosis, their egg cells will only carry the X chromosome. but we're not talking about real life here lol. since it's omegaverse (obv a fiction) and male omegas are biologically male (XY), they co......   2 reply

I would assume for Omegaverse to work, the omega's eggs would have only X chromosomes.   reply