Which Statement Does NOT Explain Why the Lac Operon Would

question 44

Multiple Choice

Which statement does NOT explain why the lac operon would not be effectively regulated by an attenuation mechanism like the trp operon?

• A) Lactose is a substrate for the lac operon protein products.
• B) Products of lac operon enzymes are not used in protein synthesis.
• C) Transcription and translation do not happen simultaneously for the lac operon.
• D) Attenuation is a suitable regulatory mechanism for anabolic amino acid pathways.
• E) All of these statements explain why regulation by attenuation would not be effective for the lac operon.

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Definitions:

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A theory in evolutionary biology suggesting that individuals with favorable genetic traits are more attractive to the opposite sex because those traits are associated with better health or greater survivability.

Opportunity for Selection

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Individual Variation

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