What Is the Nature of the Genetic Mutation That Causes

question 23

Multiple Choice

What is the nature of the genetic mutation that causes lactose intolerance?

• A) It is a dominant mutation that prevents lactase production.
• B) It is a dominant mutation that causes a decline in adult lactase levels.
• C) It is a recessive mutation that prevents lactase production.
• D) It is a recessive mutation that causes a decline in adult lactase levels.
• E) It is an X-linked mutation that prevents lactase production.

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