Morphs

[paulh]

For it to be recessive it can not combine with another gene that is incomplete dominant and produce a white snake as well. Breed a het russo to anything else in the BEL complex and u get white snakes so it is in fact incomplete dominant.

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For the purposes of this discussion, codominant and incomplete dominant are synonyms.

The terms dominant, codominant and recessive do not describe an inherant property of a given gene. They are comparative. It is quite possible for one gene to be dominant to a second gene, recessive to a third gene, and codominant to a fouth. For example, the lesser mutant gene is codominant to the corresponding normal gene and dominant to the mojave mutant gene. Lesser is codominant to the normal gene because you can tell the difference between a snake with two lesser genes, a snake with two normal genes, and a snake with a lesser gene paired with a normal gene. Lesser is dominant to the mojave gene because you cannot tell the difference between a blue-eyed white snake with two lesser genes and a blue-eyed white snake with a lesser gene paired with a mojave gene. While a snake with two mojave genes has some pigment on the head and neck.

The point I'm trying to make is that the classification of the russo gene compared to lesser (for example) is irrelevant to the classification of the russo gene compared to the normal gene.