Well, you have to understand that genetics probabilities are just that...probabilities. I can flip a quarter and have a 50% chance of having it land heads up, but that is only the probability of the matter. I can actually flip that quarter 1000 times in a row, and it is possible that it lands on tails each time. What is the probability that the 1001st flip will land on heads? Still just 50-50.
So, the fact that you got no amels, when the calculator says you could, is not alone evidence that you never could. The probabilities will frustrate you like nothing else will, if you breed corns long enough.
If your blizzard is het for anery A, and it threw that mutated gene it has at that DNA location (instead of the normal gene it also has there), then that, combined with the mutated gene that your snow had to throw (because he is homozygous for the anery A gene and has no normal gene to offer), then ALL of the babies would be snows het for charcoal.
As for crossing a snow x a banded motley het amel, the expected results SHOULD look something like:
50% amel, het for anery A and motley
and
50% normal, het for amel, anery A, and motley
Hope that helps a bit...
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Darin Chappell
Hillbilly Herps
PO Box 254
Rogersville, MO 65742