Which of the Following Provides an Example of Epistasis

question 27

Multiple Choice

Which of the following provides an example of epistasis?

• A)Recessive genotypes for each of two genes (aabb)results in an albino corn snake.
• B)The allele b17 produces a dominant phenotype, although b1 through b16 do not.
• C)In rabbits and many other mammals, one genotype (cc)prevents any fur colour from developing.
• D)In Drosophila (fruit flies), white eyes can be due to an X-linked gene or to a combination of other genes.
• E)In cacti, there are several genes for the type of spines.