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In roosters, the allele for rose comb (R) and the allele for pea comb (P) producea condition called walnut comb whenever they occur together (R_P_). It does notmatter what the 2nd allele is. Individuals that have the homozygous recessivecondition for both sets of alleles (rrpp) are single-combed.a. Give the phenotypes of both the F1 and the F2 of a cross between a purebreeding rose comb rooster (RRpp) and a hen with alleles for pure-breedingpea comb (rrPP).
