Q4.6. Imagine a species whose eye color is determined by a receptor molecule called EyeC. When EyeC is not activated, CAMP levels in the cell are low and yellow pigment is produced. When EyeC is activated by the binding of a signal molecule, cAMP levels rise and blue pigment is produced. The P allele codes for a version of EyeC that responds to signal molecules and therefore turns on and off, resulting in green eye color (from both blue and yellow pigment). The Q allele codes for a version of EyeC that is always activated, even when signal molecules are not present. Assuming EyeC functions similarly to MC1R, which of the following statements is the best prediction of the dominance relationship between alleles P and Q as well as the phenotype for PQ individuals? Q is dominant over P, and the eye color of PQ individuals is blue. Q is dominant over P, and the eye color of PQ individuals is yellow. P is dominant over Q, and the eye color of PQ individuals is blue. P and Q are codominant, and the eye color of PQ individuals is green.

Q4.6. Imagine a species whose eye color is determined by a receptor molecule called EyeC. When EyeC is not activated, CAMP levels in the cell are low and yellow pigment is produced. When EyeC is activated by the binding of a signal molecule, cAMP levels rise and blue pigment is produced. The P allele codes for a version of EyeC that responds to signal molecules and therefore turns on and off, resulting in green eye color (from both blue and yellow pigment). The Q allele codes for a version of EyeC that is always activated, even when signal molecules are not present. Assuming EyeC functions similarly to MC1R, which of the following statements is the best prediction of the dominance relationship between alleles P and Q as well as the phenotype for PQ individuals? Q is dominant over P, and the eye color of PQ individuals is blue. Q is dominant over P, and the eye color of PQ individuals is yellow. P is dominant over Q, and the eye color of PQ individuals is blue. P and Q are codominant, and the eye color of PQ individuals is green.

Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter16: Gene Expression

Section: Chapter Questions

Problem 28CTQ: A scientific study demonstrated that rat mothering behavior impacts the stress response in their...

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