Question

12. In a species of bird, pink eyes (P) are dominant to blue eyes (p) and...

12. In a species of bird, pink eyes (P) are dominant to blue eyes (p) and long tails (L) are dominant to short tails (l).

Two purebred (homozygous) birds mate, one with pink eyes and a short tail and the other with blue eyes and a long tail.

Set up a Punnett Square to determine the genotypes and phenotypes that can result from this cross.

a. What would be the genotypic ratio of the offspring?

The pink-eyed offspring from above is mated with a pink-eyed bird that has the same genotype as the pink-eyed parent.

b. What percentage of these offspring will have pink eyes?

c. What percentage will have long tails?

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