You Are Studying the Regulation of a Prokaryotic Operon

question 18

Multiple Choice

You are studying the regulation of a prokaryotic operon.Experimental results suggest that the operon is governed by negative control.Based on this information,you conclude that

• A)the operon is ON in the absence of its regulatory protein.
• B)the operon is OFF in the absence of its regulatory protein.
• C)the presence of an inducer will always cause a repressor to bind the operator.
• D)the presence of an inducer will always prevent a repressor from binding the operator.

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Definitions:

Exports

Goods or services produced in one country and sold to buyers in another country.

Budget Surplus

A situation where income or revenues exceed expenditures over a specific period of time, typically a fiscal year.

Budget Deficit

A budget deficit happens when a government's expenditures surpass its revenues within a given fiscal period.

Demand Curve

A graph showing the relationship between the price of a good and the quantity demanded by consumers at those prices.