>Now, 50% hets come in when you breed het to normal. One albino gene and one normal gene from the het parent to disperse, so half pick up the albino gene.



While this is true, it's a case of apples and oranges. The 50% heterozygotes in the early part of the thread referred to eggs. It's the probability of a given egg producing a heterozygote before the eggs hatched. In other words, before an egg from two heterozygotes hatches, it has a 25% chance of producing a normal, a 50% chance of producing a normal-looking heterozygote, and a 25% chance of producing an albino.



After the hatch, we talk about the babies, not the eggs. As you wrote, the albinos are deleted from the group in question, leaving only the normal-looking babies. Which means that a normal-looking baby from a heterozygous albino x heterozygous albino mating has an approximately 66% chance of being a heterozygous albino and an approximately 33% chance of being homozygous normal.



Paul Hollander

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