7
QuizMultiple Choice

Factors Affecting Genetic Variation — Quiz

Question 7 • TPS EdX Biology

In a population of seals, most of the seals have similar coloring. However, one seal has albinism. This seal is white and is almost completely blind. What is most likely the cause of this difference from the rest of the population?

Answer
A
genetic drift
B
gene flow
C
gene mutation
D
natural selection

Explanation

Albinism is usually caused by a change in a gene that affects pigment production. That gene mutation can make the seal’s coloring white and may also cause vision problems. Genetic drift, gene flow, and natural selection describe changes in populations, not the specific genetic change that causes albinism in one seal.

AI-written and checked against the verified answer.

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