The reason you've never heard het applied to the tiger gene is the general ignorance of standard genetics terms among herpers. For many years there were only recessive mutant genes, and people got the impression that heterozygous only applied to recessive mutants and that hets look normal.

Then mutants that were not recessive started showing up. Somebody started defining codominant as having one of these mutants paired with a normal gene and not looking normal. In standard genetics, such a snake would be called heterozygous for a dominant or codominant mutant gene. And dominant got defined as having two of these mutant genes (standard genetics = homozygous for a dominant or codominant mutant gene). Dominant and super often mean the same thing in this dialect.

In my opinion, having this sort of ghetto dialect get established is one of the worst things that can happen to herp genetics.

Paul Hollander

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