In the determination of eye color, the HERC2 gene overrides the instructions of the OCA2 gene. If individuals are homozygous for a recessive allele of HERC2, they will have blue eyes regardless of the genotype associated with OCA2. This is an example of
A) epistatic interactions.
B) a two-trait cross.
C) incomplete dominance.
D) codominance.
E) homologous chromosomes.

Question

Quizplus · Accepted Answer

This is an example of epistatic interactions, where one gene overrides the effects of another gene. The HERC2 gene is epistatic to the OCA2 gene in determining eye color.

In the Determination of Eye Color, the HERC2 Gene Overrides