For a Repressible Operon to Be Transcribed, Which of the Following

question 26

Multiple Choice

For a repressible operon to be transcribed, which of the following conditions must occur?

• A) A corepressor must be present.
• B) RNA polymerase and the active repressor must be present.
• C) RNA polymerase must bind to the promoter, and the repressor must be inactive.
• D) RNA polymerase must not occupy the promoter, and the repressor must be inactive.

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Definitions:

Average Fixed Cost

The fixed costs of production divided by the quantity of output produced; it decreases as production increases.

Average Variable Cost

The total variable costs divided by the quantity of output produced.

Total Variable Costs

The sum of all costs that vary with output level, including costs for raw materials, labor, and other expenses that increase with production.

Output Increases

A situation in which the quantity of goods or services produced in an economy rises.