The trpR gene encodes an allosteric protein that binds the amino acid tryptophan and regulates the initiation of trp operon transcription. What would be the most likely result of a trpR mutation that eliminated the ability of the protein to bind tryptophan? O Transcription would be initiated if tryptophan is absent, but not if it is present. O Transcription would be initiated either in the presence or in the absence of tryptophan. Transcription would not be initiated either in the presence or in the absence of tryptophan. O Transcription would be initiated if tryptophan is present, but not if it is absent.
The trpR gene encodes an allosteric protein that binds the amino acid tryptophan and regulates the initiation of trp operon transcription. What would be the most likely result of a trpR mutation that eliminated the ability of the protein to bind tryptophan? O Transcription would be initiated if tryptophan is absent, but not if it is present. O Transcription would be initiated either in the presence or in the absence of tryptophan. Transcription would not be initiated either in the presence or in the absence of tryptophan. O Transcription would be initiated if tryptophan is present, but not if it is absent.
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
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Transcribed Image Text:QUESTION 12
The trpR gene encodes an allosteric protein that binds the amino acid tryptophan and regulates the
initiation of trp operon transcription. What would be the most likely result of a trpR mutation that
eliminated the ability of the protein to bind tryptophan?
O Transcription would be initiated if tryptophan is absent, but not if it is present.
O Transcription would be initiated either in the presence or in the absence of tryptophan.
O Transcription would not be initiated either in the presence or in the absence of tryptophan.
Transcription would be initiated if tryptophan is present, but not if it is absent.
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