Which of the following is considered a reverse mutation that will restore the wild type phenotype?
A. True reversion back to the wild type base sequence.
B. Mutation to a different base sequence, but one that restores the amino acid sequence in the protein to the wild type sequence.
C. A mutation that restores the function of a protein even though it does not restore the base sequence or the amino acid sequence to the wild type.
D. All of the choices.
Answer: D
Microbiology
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