Recessive ball python gene
Patternless Ball Python: Genetics and Pairing Odds
Patternless is a recessive gene. A ball python needs two copies to look Patternless; with one copy it looks normal and is called het Patternless. Pair two hets and about a quarter of the babies are visual Patternless, while the normal-looking siblings are each 66% likely to be het. Breed a visual to a normal and every baby is het, which is how most Patternless projects start.
In Lock and Lay, Patternless can't be bought at the start. It turns up only as a spontaneous mutation, from a lucky egg, and the first breeder to hatch one gets their name on the discovery board.
What Patternless pairings produce
| Pairing | Babies, per egg |
|---|---|
| Patternless × Normal | 100% Normal het Patternless |
| Het Patternless × Het Patternless | 75% Normal 66% het Patternless25% Patternless |
| Patternless × Het Patternless | 50% Normal het Patternless50% Patternless |
| Patternless × Patternless | 100% Patternless |
| Het Patternless × Normal | 100% Normal 50% het Patternless |
Try Patternless pairings yourself
Put any two animals into the ball python morph calculator for the full odds, hets and supers included. Or breed Patternless 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 recessive genes
PuzzleCrypticEnhancerDesert GhostTri-StripeLavender AlbinoGenetic BandedMonarchPiebaldCandySaharaBlack Axanthic