>my question is if i have a male and female 66%het bred together what would the out come be?



The outcome would be one of the following four possible outcomes:



1. One or more pied babies come out. This means that both parents are actually heterozygous pieds (AKA 100% probability het pied). All of the normal-looking babies are 66% probability het pieds. This is the outcome you hope for. Probability of this happening is 4/9.



2. Male is a het pied and female is a normal. All the babies look normal, though some are het pied. You just don't know which ones. Probability of this happening is 2/9.



3. Male is a normal and female is a het pied. All the babies look normal, though some are het pied. You just don't know which ones. Probability of this happening is 2/9.



4. Male and female are normal and all the babies are normal. Probability of this happening is 1/9.



If you get 17 babies out of this mating, and all of them look normal, then the outcome is number 2, 3, or 4. I don't think it is worthwhile to put a percent probability of being heterozygous pied on these babies. At most I'd mark them as "second normal-looking generation out of het pieds".



Hope this helps.



Paul Hollander

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