Y Chromosome Jokes

How do you tell X chromosomes from Y chromosomes?

You pull down their genes.

Interactive Joke of the Day Mug

Interactive Joke of the Day Mug

Coffee Mug

Why did Caitlyn Jenner have a differently spelled version of Caitlin?

Because she can't get rid of the Y chromosome

How do you tell an X chromosome from a Y chromosome?

Pull down its genes.