Punnett squares are used to show possible combinations of alleles or to predict the probability of a trait occurring in offspring. an incomplete dominance cross is performed between a bird that is homozygous for red feathers and a bird that is homozygous for blue feathers. purple offspring result. then, two of the purple offspring are crossed. according to the punnett square for this cross, how many of the offspring from the second cross will have a feather color that results from incomplete dominance?

The correct answer would be 50 percent.

Let us assume R and r be the alleles of the gene that is responsible for the feather color in a bird.

R is incomplete dominant allele which codes for red feather when present in homozygous condition. Similarly. r is the recessive allele which codes for blue color when present in homozygous condition.

The individual gets a purple flower when it is heterozygous for the gene.

Thus, the genotype of the bird with purple feathers would be Rr.

It will produce two types of gametes; R and r.

The cross is shown in the attached file below.

Thus, the genotype ratio would be 1 (RR): 2 (Rr): 1 (rr).

Thus, 2 out of 4 or 50 percent offspring would show incomplete dominance.

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explanation:

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