Basic Trope: A man has an extra Y chromosome, which makes him violent.
- Straight: Bob is an extremely violent man with an extra Y chromosome.
- Exaggerated: Bob is both violent and a psychopath, all because of his extra Y.
- Downplayed: Bob's extra Y makes him destructive and/or mouthy, but he never actually attacks people or animals.
- Justified: An extra Y chromosome can lead to learning disabilities and Bob has trouble controlling his temper due to a learning disability.
- Inverted:
- Bob's extra Y chromosome actually makes him pacifistic.
- Bob has an extra X chromosome that makes him pacifistic.
- Bob has an extra X chromosome that makes him aggressive.
- Bob is a trans man with no Y chromosomes, but is nevertheless highly aggressive.
- Gender Inverted: Alice has an extra X chromosome that either makes her violent or makes her into an extremely stereotypical woman.
- Subverted:
- Bob genetically-engineers himself to get rid of his extra Y chromosome and finds himself still just as violent as he was before.
- Bob wants to be aggressive for some reason, so he genetically-engineers himself to have an extra Y chromosome. All it does is make him taller.
- Later on, the show introduces Charlie, who also is XYY, but he's not violent— just tall and dyslexic.
- Parodied: Somehow, Bob only has Y chromosomes.
- Zigzagged: By some strange coincidence, all the males on the show have an extra Y, and they all have varying levels of aggression from zero to extreme.
- Averted:
- Bob has a normal amount of chromosomes.
- Bob does have an extra chromosome, but he has the normal amount of X and Y chromsomes.
- Bob does have an extra Y chromosome, but he's not violent— just very tall and possibly has a learning disability.
- Enforced:
- Lampshaded: "But that's not how XYY syndrome works!"
- Invoked: Alice, Bob's mother, is evil and she genetically-engineers her son to give him an extra Y chromosome, so that he will be evil too.
- Exploited: The villain actively seeks out minions with extra Y chromosomes.
- Defied: People genetically-engineer boys in utero so that they won't have an extra Y chromosome, for fear of them becoming violent.
- Discussed:Diane: "I just found out after getting married that my brother-in-law has an extra Y chromosome! Should I be worried?!"
- Conversed: "As an XYY man, I'm so sick of us being portrayed as monsters!"
- Implied: Bob is violent and said to have an extra chromosome, but it's never revealed which one.
- Deconstructed:
- Reconstructed:
- Played for Laughs: Bob has superpowers that activate when he's angry, which is often because of his extra Y chromosome.
- Played for Drama: Bob wishes he wasn't so aggressive and hates his genetics.
- Played for Horror: Bob is a Serial Killer with an extra Y chromosome.
Back to Extra Y, Extra Violent.
