Mutations that result in a single amino acid substitution in an enzyme _____
A) cannot affect the activity or properties of the enzyme
B) will destroy the activity of the enzyme
C) will change the substrate specificity of the enzyme
D) may change the enzyme's optimal temperature or optimal pH
E) may, in rare cases, cause the enzyme to run reactions in reverse
Answer: D
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In peas, Mendel found that tall plants and yellow peas are dominant. The phenotype for a pea plant
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