The Role of a Metabolite That Controls a Repressible Operon

question 91

Multiple Choice

The role of a metabolite that controls a repressible operon is to

• A) bind to the promoter region and decrease the affinity of RNA polymerase for the promoter.
• B) bind to the operator region and block the attachment of RNA polymerase to the promoter.
• C) increase the production of inactive repressor proteins.
• D) bind to the repressor protein and inactivate it.
• E) bind to the repressor protein and activate it.

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Definitions:

Meat Powder

Ground or finely divided meat used in various contexts, including as a food ingredient or in laboratory settings as a stimulus in the study of animal behavior.

Conditioned Response

A learned response to a previously neutral stimulus that has been repeatedly presented along with an unconditioned stimulus.

Tone

can refer to the quality or character of sound, or in linguistics, the use of pitch in language to distinguish lexical or grammatical meaning.

Salivation

The secretion of saliva in the mouth, which is stimulated by the presence or anticipation of food and aids in digestion.