Chromo jokes
What do you say after committing incest?
No Chromo!
What do you call a downie superhero?
Chromo-doner.
when you use ancestry.com instead of tinder.
The emo kid ran away after his parents asked why they took the barcode sticker off the Oreos.
Looks like the gene pool in your family is about three inches deep.
Don't let an extra chromosome get you down!