Which of these is a mutation?
A. A change in the gene that codes for the Lactase enzyme.
B. An error in translation that produces a Lactase enzyme that can also bind to sucrose.
C. Damage to the mRNA molecule that codes for the Lactase enzyme.
D. A transfer of the lactase gene from one cell to another.
Answer: A. A change in the gene that codes for the Lactase enzyme.
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