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Author Question: Which of the following is FALSE regarding how bacteria regulate the transcription of stress response genes? (Read 287 times)

BrownTown3

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on: Jan 12, 2022

Question 1

Which of the following genotypes and conditions will have the lowest level of trp operon expression?
◦ trp+ / tryptophan present
◦ trpR- / tryptophan present
◦ trpL- / tryptophan present
◦ trp+ / tryptophan absent
◦ trpP- / tryptophan absent

Question 2

Which of the following is FALSE regarding how bacteria regulate the transcription of stress response genes?
◦ Under extreme growth conditions, such as heat stress and starvation, bacteria can induce transcription of alternative sigma factors.
◦ The rpoH gene encodes a sigma factor known as σ32 that is active at high temperatures.
◦ High heat can cause a change in the chaperone proteins.
◦ Transcription is activated by antitermination, which allows transcription to extend into heat shock genes.
◦ Holoenzymes containing an alternative sigma subunit are able to recognize the promoters of genes not transcribed by the common bacterial RNA polymerase.
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Marked as best answer by BrownTown3 on Jan 12, 2022

ambernicolefink

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Reply #1 on: Jan 12, 2022
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Genevieve McClure

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Reply #2 on: Oct 19, 2022
Thank you!


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