I forget who it was who showed me this, but I love it: www.geneticswizard.com
It will make dihybrid crosses a breeze for you.

When using it though there are a few things we need to remember that are often used incorrectly in the herp community. A dominant trait means that there is no visual (phenotypic) difference between the homozygous form and the heterozygous form (though keep in mind, there is no "het" for any of these traits!). A codominant trait means there is a phenotypic difference between the two genotypes, such as in a jungle vs. super jungle. This means that hypomelanism is a DOMINANT trait.

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