Which of the Following Terms Best Characterizes Catabolite Repression Associated

question 26

Multiple Choice

Which of the following terms best characterizes catabolite repression associated with the lac operon in E.coli?

• A) inducible system
• B) repressible system
• C) negative control
• D) positive control
• E) constitutive

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Definitions:

Fixed Costs

Expenses that do not change with the level of goods or services produced by a business over a certain period.

Net Income

The total earnings of a company after all expenses and taxes have been subtracted from total revenue.

Sales

The revenue generated from goods or services sold by a company in the ordinary course of its business.

Contribution Margin

The amount remaining from sales revenue after variable expenses are deducted; it contributes towards covering fixed costs and generating profit.