Axanthic Empty Back Crested Gecko

One animal carrying both genes. Each one is inherited separately, so this combination is made by bringing them together rather than being a gene of its own.

The two genes

Axanthic: recessive; Yellow pigment absent, leaving greys, blacks and whites.
Empty Back: co-dominant; A clean, unmarked dorsal field between the crests.

How one is made

Both genes have to come together in the same animal. The pairing that does it most directly is Axanthic × Empty Back, which works out every outcome and its odds.

Every Crested Gecko combination