In the absence of substance M,a hypothetical LM operon is turned off.If substance M is abundant,it can bind to the repressor,which permits the polymerase to begin transcribing the DNA.In this case,LM is a(n) _______ operon and M acts as a(n) _______.
A) repressible;inducer
B) repressible;transcription factor
C) inducible;inducer
D) inducible;corepressor
E) inducible;transcription factor
Correct Answer:
Verified
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