X Genetics?

I found this gifset on Tumblr, from what was a scene from the original X-Men trilogy:

Okay so I’m pretty sure that the point of this gifset was to draw parallelisms with sexual closeting but

Until I read an in-universe thesis on mutant genetics, specifically a section on the mode of inheritance of the X gene, I cannot accept the “Actually, they discovered blah blah” science! quoted by Pyro over there. I mean, in what universe would it be evolutionarily advantageous to have the X gene Y-linked?

You know what? Someone in the internet probably thought about this already. I’ll go google stuff.

xx

I feel like I should have a tag for my queued stuff, just so that I don’t fool my future reminiscing self with the when’s and the where’s of the moment.