Quote Originally Posted by paulh View Post
The simplest het lesser ball python has a lesser gene paired with the corresponding normal gene. Crossing two of these het lessers is one way to produce a homozygous (AKA super) lesser ball python. There are other ways, such as crossing two homozygous lessers. And crossing a homozygous lesser to a homozygous mojave is one way to produce a BEL that is heterozygous because the gene pair is made up of a lesser gene and a mojave gene.

I want to interject one caveat to your final statement, a lesser/mojave BEL is still technically a "het lesser" and "het mojave" animal, but since the genes are allelic, it is still a homozygous BEL ball python, in that on the allele that controls the leucism of the animal there is no longer a "normal" gene. A lesser/mojave BEL animal therefore, as we know, can only pass on either the lesser or mojave gene to it's offspring.

So in a sense any BEL complex gene, whether it be lesser, mojave, or what ever else, is technically just het leucistic. But since we know of more than one leucism complex gene, they were all named individually.