By Mutating Selected Bases in Sequence 3 in the Leader

question 30

Multiple Choice

By mutating selected bases in sequence 3 in the leader peptide of the trp operon of E. coli, attenuation compared with the normal sequence is:

• A) unchanged.
• B) only increased in the presence of Trp.
• C) always increased.
• D) decreased.
• E) It cannot be determined from the information given.

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Characterized by outgoing, sociable, and energetic behavior.

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