1- These are jokes which my mind worked/works out spontaneously during class lectures, while reading texts and elsewhere.
2- Neither do I make any claims regarding their amusement quotient. It varies from person to person. Nor do I guarantee that each joke will tickle your soles.
3- If you know the biology behind the joke, well and good. If you don't but want to know it, you have either me or Google at your disposal. If you don't care about biology, please feel free take the next left turn.
4- Try to keep 'Horrendous Biology Jokes' in your mind if you read ahead.
5- Well, that's pretty much it. Wishing you a safe journey ahead. :)