A pro- strain of bacteria,which has not been in contact with any other strains,develops the ability to produce the amino acid proline.What is the most likely mechanism of this mutant "rescue?"
A) addition of the pro+ gene via transduction
B) addition of the pro+ gene during conjugation
C) removal of the pro- gene during excision
D) addition of the pro+ gene via transformation
E) correction of the pro- gene by reverse transcriptase
Correct Answer:
Verified
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C)is
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