What Would Be the Result of a Mutation That Deactivates

question 8

Multiple Choice

What would be the result of a mutation that deactivates the regulatory gene of a repressible operon in an Escherichia coli cell?

• A)continuous transcription of the enzyme-coding gene controlled by that regulator
• B)complete inhibition of transcription of the enzyme-coding 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

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Definitions:

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A tax provision allowing companies to apply a net operating loss to previous tax years' profits, resulting in a tax refund.

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The total amount of income tax a company reports it owes in a given fiscal period.

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