Is there a way to pick out the homozygous cushion comb (RRPP) from approx 50 birds that should be 75% heterozygous for cushion comb and 25% homozygous? At any age? I understand that Pea comb has incomplete dominance, so the smallest combs could be homozygous PP, but I've found no evidence that the smaller comb indicates homozygous RR. I want to minimize the amount of test breeding I have to do.
Thanks
Thanks
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