Co-dominant ball python gene · super form: Super Grim
Grim Ball Python: Genetics and Pairing Odds
Grim is a co-dominant (incomplete dominant) gene. One copy gives the Grim look, and two copies make the Super Grim, a stronger version of it. Bred to a normal, a Grim gives about half Grim babies; a Super Grim gives Grim babies every time.
What Grim pairings produce
| Pairing | Babies, per egg |
|---|---|
| Grim × Normal | 50% Normal50% Grim |
| Grim × Grim | 50% Grim25% Normal25% Super Grim |
| Super Grim × Normal | 100% Grim |
| Super Grim × Grim | 50% Grim50% Super Grim |
Try Grim pairings yourself
Put any two animals into the ball python morph calculator for the full odds, hets and supers included. Or breed Grim ball pythons in Lock and Lay, a free ball python game where every clutch follows these same odds and the babies sell on a live market.
Other co-dominant genes
GHIRARHet Red AxanthicBananaSpecialAcidChampagneSpecterChinoBambooWookieNanny