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27. Heterozygous Cp cp chickens express a condition called creeper, in which the leg and wing bones are shorter than normal (cp cp). The dominant Cp allele is lethal when homozygous. Two alleles of an independently segregating gene determine white (W_) versus yellow (ww) skin color. From a mating between chickens heterozygous for both genes, what phenotypic classes will be represented among the viable progeny, and what are their expected relative frequencies? Please show using the branch diagram method.

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