Andrew did a mutant screen with his favorite bacterium that he used for marine phage hunting. He identified three base-substitution mutations on the bacterial recA gene:
Mutant A: A base substitution occurred, which changed T to C, and consequentially abolished transcription of the recA gene.
Mutant B: A base substitution, which changed codon 2 from ACC to ACT, which did not change encoded amino acid.
Mutant C: A base substitution occurred, which changed codon 3 from TCA to a stop codon TGA.
Based on the above info, which of the mutants would still have functional RecA protein?
a. Mutant B
b. Mutant A
c. Mutant C
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Andrew did a mutant screen with his favorite bacterium that he used for marine phage hunting. He ide...
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