The Lac Operon Is Induced by the Presence of Lactose

question 7

Multiple Choice

The lac operon is induced by the presence of lactose, but it is transcribed at a high rate only when:

• A)The cyclic adenosine monophosphate (cAMP) level in the cell is high.
• B)A ribosome binds to the Shine-Dalgarno sequence.
• C)A ribosome binds to the 5' cap of the mRNA.
• D)Tryptophan is present in high concentration.
• E)Glucose is present

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Definitions:

Biconditional

A logical statement that is true only if both the conditions it connects are either true or false.

Tautology

A proposition that is inherently true due to its logical structure or necessity, frequently restating the same concept using varied terminology.

Main Component

The primary or most important part of something that contributes to its function or structure.

Conjunct

An element of a conjunction in logic, representing a compound statement formed with the word "and" that is true only when both components are true.