A Mutation That Inactivates the Regulatory Gene of a Repressible

question 76

Multiple Choice

A mutation that inactivates the regulatory gene of a repressible operon in an E. coli cell would result in

• A) continuous transcription of the structural gene controlled by that regulator.
• B) complete inhibition of transcription of the structural gene controlled by that regulator.
• C) irreversible binding of the repressor to the operator.
• D) inactivation of RNA polymerase by alteration of its active site.
• E) continuous translation of the mRNA because of alteration of its structure.

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Definitions:

Whips

Flexible, often long and slender pieces of material typically made of leather or a similar substance, used either for driving animals or as a means of punishment.

Utility Function

A representation of an individual’s preference ordering over a set of outcomes, quantifying the satisfaction or happiness derived.

Cocoa

A powder made from roasted and ground cacao seeds, used in the making of chocolate, as well as in baking and in beverages.

Consumption

The use of goods and services by households or individuals.