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.

Question

Quizplus · Accepted Answer

The mutation that causes lactose intolerance is a recessive mutation that causes a decline in adult lactase levels.

What Is the Nature of the Genetic Mutation That Causes