Quote Originally Posted by Jahbeard
Not to be simple, but why only 50%.
Each parent will pass on either the normal gene or the mutant gene for the trait in which they are a carrier (het). Each offspring has a 50% chance of inheriting the albino gene from the het albino parent, and a 50% chance of inheriting the hypo gene from the het hypo parent.

66%'ers come from breeding two hets of the same trait. Each of the non-visual offspring have a 2/3 chance of being a het from this pairing.

-Evan