An Operon Is Controlled by a Repressor

question 49

Multiple Choice

An operon is controlled by a repressor. When the repressor binds to a small molecule, it is released from binding to DNA near the operon. The operon is never expressed if a mutation prevents the repressor from binding to the small molecule. The type of control illustrated is:

• A) negative inducible.
• B) negative repressible.
• C) positive inducible.
• D) positive repressible.
• E) attenuation.

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Definitions:

Net Operating Income

Net operating income is the total profit of a business after subtracting operating expenses but before deducting taxes and interest charges.

Target Costing

A pricing method that involves reversing the traditional cost-plus formula to determine allowable costs based on market price and desired profit.

Cost-consciousness

An awareness and consideration of cost and expenditure in decision-making processes to minimize expenses and enhance efficiency.

Obsolete Desk Calculators

Desk calculators that are no longer in use or have been replaced by more modern or efficient technology.