There can be multiple sets of recessive genes in a single snake, just as there can be multiple sets of dominant genes. The important thing is do they sit on the same allele ? For example, a ball can be both pied and albino, which are both recessive. It will be visual for both morphs. But certain genes which sit on the same allele one will cancel the other out.
I can't remember exactly which ones do that, someone help me out with that ?
Gale