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

Pull down its genes.

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Tell Jokes More Tell Jokes

How do you keep an idiot in suspense?

I'll tell you tomorrow.

Why did Helen Keller try lsd?

Because she was told it makes you see things!

Pull Jokes More Pull Jokes

When a cop pulls you over and asks, "Papers?

answer "Scissors." then drive away..

What do you call people who use the "pull out" method for contraception?

Parents.

Gene Jokes More Gene Jokes

How do you tell the difference between an X and Y chromosome?

You pull down its genes.

What does DNA Helicase and a 16 year old boy have in common?

the both want to unzip your genes. if you didnt get it: https://ca.answers.yahoo.com/question/index qid=20121209104938AAKihOC

X Chromosome Jokes More X Chromosome Jokes

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

Pull down its genes.

What's a nerdy way of saying a bad word?

A canine with two X chromosomes.

Y Chromosome Jokes More Y Chromosome Jokes

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

Pull down its genes.

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

Because she can't get rid of the Y chromosome