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People Who Are Lactose Intolerant

Question 22

Multiple Choice

People who are lactose intolerant


A) produce inactive lactase.
B) have a genetic polymorphism of the lactase gene that turns off lactase production after weaning.
C) must drink soy (non-dairy) formula as infants.
D) have a mutation in the promoter region of the lactase gene.
E) have mutations in regulatory regions of the lactase gene.

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