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

You pull down its genes.

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Difference Jokes More Difference Jokes

What's the difference between the standard alphabet and Christmas alphabet?

There's Noel.

What is the difference between a locomotive engineer and a teacher?

One minds the train the other trains the mind.

Tell Jokes More Tell Jokes

How do you tell the difference between members of the GOP and ISIS?

Skin color.

Why does the dyslexic Spanish speaker have a poor self image?

His chemistry teacher told him he was mostly made of cabron.

Pull Jokes More Pull Jokes

How do blind skydivers know when to pull the cord?

The leash goes slack

What did the blonde do after she combed her hair?

She pulled her pants up.

Gene Jokes More Gene Jokes

Why did Steve hate being the youngest clone?

Because all his genes were hand me downs.

How are teenaged boys like the enzyme helicase?

They both want to unzip your genes! credit goes to Hank from CrashCourse on Youtube :)