A Mutation That Inactivates the Regulatory Gene of a Repressible

question 63

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 gene controlled by that regulator.
• B)complete inhibition of transcription of the 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:

Unsubstitutable

Describes a good or service that cannot be replaced or substituted by another due to its unique characteristics or the specific needs it meets.

Supplier Power

The influence a supplier has over the price and availability of its products, affecting the market competitiveness.

Less Concentrated

Refers to an industry or market where power and resources are spread out among many competitors, reducing the level of competition.

Vital Inputs

Crucial resources or components required for the production process or for providing a service.