Blake is right! Also leopard geckos have a lot of genetics stuff available. If you use the typical punet square thing for albinos you would get "A" for normal (dominant) and "a" for the recessive trait (an albino, lacking the dark pigment). When you breed a homozygous dominant male "AA" to a homozygous recessive female "aa" (the female would be an albino showing the lack of pigment and the male would look normal) you would get all heterozygous offspring "Aa" If you bred these offspring back to the mother 1/2 would be albino and half would be het for albino. If you bred 2 hets together ("Aa") then you would get 1/4 albino, 1/2 het for albino, and 1/4 homozygous dominant. If this cross is done then you will see animals that are 66% chance for het albino because they show the normal pattern (not albino) so they must be either het or homozygous. In other words if 2 hets are bred together, the babies that are not albino will be sold as 66% het for albino (and hopefully they won't be priced too much higher than a regular because there is a 33% chance that they are regular!
Definitely look this up because it can be tricky. I would recommend drawing out a punet square if you need help. These are pretty easy to understand. Look them up!
Take care,