Which of the following is an example of a positive-inducible operon? A collection of genes turned on when the regulatory metabolite is __________, and the regulatory protein is ___________. Group of answer choices present
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A positive-inducible operon is turned on when ________. Group of answer choices The regulatory protein is bound to the DNA, and the metabolite is present. The regulatory protein is absent from the DNA, and the metabolite is absent. The regulatory protein is absent from the DNA, and the metabolite is present. This is an impossible combination of terms. The regulatory protein is bound to the DNA, and the metabolite is absent.
Anand J.
In response to the ligand/metabolite, the regulatory protein binds to the DNA to prevent the transcription of genes stored in an operon. The regulation of this operon could be characterized as __________. Group of answer choices Positive-inducible. Negative-inducible. Constitutive. Negative-repressible. Positive-repressible.
Taha T.
5. The clog operon produces enzymes that convert compound A into compound B. The operon is controlled by a regulatory gene S. Normally, the enzymes are synthesized only in the presence of a third compound C. For all mutations of the S gene identified, the enzymes are not synthesized in the presence or absence of compound C. a) Is this operon inducible or repressible? Explain your answer. b) Does gene S produce a repressor or an activator? Explain your answer.
Joy C.
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