"Nitrogen Base" joke

*Background Info: uracil is a nitrogen base in mRNA, a substance used in protein synthesis.
Knock-knock!
Who's there?
Uracil.
Uracil who?
Uracilly, crazy person if ya don't let me in!

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Anonym:no
Funny Joke? 6 vote(s). 50% are positive. 1 comment(s).