and I explained this in an edit but i was over the 10 min mark -_- and I dont feel like typing again so ill put some links. Spiders are a really strange gene so it doesnt work for them and here is more discussion on that (http://ball-pythons.net/forums/showt...er-for-example). I also touched on why pinstripes also had no homozygous forms. Both are very confusing situations since they arent "true" dominant. (http://ball-pythons.net/forums/showt...m-or-dom/page1).

Basically use the co-dom form in a punnett square and know that a homozygous form of the traits aren't a super and as far as everyone knows they dont exist