As best I can figure this out, an albino bred to a normal, for example, all the babies will be normal 100% het albino. Meaning all the babies for sure carry the albino gene.
If you buy a snake from a reputable breeder as 100% het albino, and breed that snake to a normal, only statistically half of the babies can carry the albino gene, hence the term 50% het. It does mean the baby has a 50% chance of being het, and a 50% chance of being only normal.
If you purchase two 100% het albinos and breed them together. Statistically 1 in four babies will be albino, the other three could be het to albino. Since you have no way of telling hets from normals, you say those three babies are 66% het for albino. I think that statistically, two of the three should be hets, and that's where the 66% comes from, a two-thirds chance of being het.
Gale
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