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  GhostFox  |  33

Fun Fact One: If they're human, they have at least one X chromosome. Fun Fact Two: Some men have more than one X chromosome, and some women have a Y chromosome. Some people have three or even more chromosomes, because biology does some unusual things sometimes. Fun Fact Three: There's around 2,000 genes on the X chromosome, whereas the Y chromosome has around 50-60 genes.

By  species4872  |  17

You got sucked off by Hoover.

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