Negative control regarding the trp operon means that .... (pick the best answer)

ID: 40175 • Letter: N

Question

Select one:

a. The structural gene products are produced when tryptophan is absent.

b. The structural gene products are produced when the repressor is bound to the operator.

c. The structural gene products are produced when RNA polymerase binds to the promoter.

d. The structural gene products are not produced when the repressor is bound to the operator.

e. The structural gene products are transcribed when tryptophan is present.

f. The structural gene products are not produced when RNA polymerase binds to the promoter.

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