Which of the Following Scenarios Describes an Example of Epistasis

question 25

Multiple Choice

Which of the following scenarios describes an example of epistasis?

• A) Recessive genotypes for each of two genes (aabb) results in an albino snake.
• B) In rabbits and many other mammals, one genotype (ee) prevents any fur colour from developing.
• C) In Drosophila (fruit flies), white eyes can be due to an X-linked gene or to a combination of other genes.
• D) In cacti, there are several genes for the type of spines.

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