PRESCOTT'S MICROBIOLOGY
11th Edition
ISBN: 9781264073375
Author: WILLEY
Publisher: MCG
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Textbook Question
Chapter 14, Problem 1AL
Attenuation affects anabolic pathways, whereas repression affects either anabolic or catabolic pathways. Provide an explanation for this.
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Chapter 14 Solutions
PRESCOTT'S MICROBIOLOGY
Ch. 14.2 - MICRO INQUIRY In what way is on inducer molecule...Ch. 14.2 - MICRO INQUIRY Is allolactose a corepressor or...Ch. 14.2 - Retrieve, Infer, Apply Many genes and operons are...Ch. 14.2 - Prob. 2CCCh. 14.2 - Prob. 3CCCh. 14.3 - MICRO INQUIRY How does this attenuation respond to...Ch. 14.4 - MICRO INQUIRY How does inhibition of translation...Ch. 14.4 - Prob. 1CCCh. 14.4 - Prob. 2CCCh. 14.4 - Prob. 3CC
Ch. 14.4 - Retrieve, Infer, Apply How are translational...Ch. 14.4 - Prob. 5CCCh. 14.5 - MICRO INQUIRY Relative to each promoter, where...Ch. 14.5 - MICRO INQUIRY For what other compounds would you...Ch. 14.5 - Prob. 1CCCh. 14.5 - Retrieve, Infer, Apply What is diauxic growth?...Ch. 14.5 - Retrieve, Infer, Apply Describe the events that...Ch. 14.5 - Retrieve, Infer, Apply E. coli has two phosphate...Ch. 14.5 - Prob. 5CCCh. 14.6 - Prob. 1MICh. 14.6 - MICRO INQUIRY Why does V. harveyi make three...Ch. 14.6 - Prob. 3MICh. 14.6 - Prob. 1CCCh. 14.6 - Prob. 2CCCh. 14.6 - Prob. 3CCCh. 14.6 - Retrieve, Infer, Apply Why might bacteria use...Ch. 14.6 - Prob. 5CCCh. 14.6 - Prob. 6CCCh. 14 - Prob. 1RCCh. 14 - Prob. 2RCCh. 14 - Prob. 3RCCh. 14 - Prob. 4RCCh. 14 - Attenuation affects anabolic pathways, whereas...Ch. 14 - Describe the phenotype of the following E. coli...Ch. 14 - Prob. 3ALCh. 14 - What would be the phenotype of a B. subtilis...Ch. 14 - Propose a mechanism by which a cell might sense...Ch. 14 - Prob. 6ALCh. 14 - Prob. 7ALCh. 14 - Prob. 8ALCh. 14 - Prob. 9AL
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- What is diauxic growth? Explain how catabolite repression causes diauxic growth.arrow_forwardDescribe the mechanism by which cAMP receptorprotein (CRP), the regulatory protein for catabolite repression, functions. Use the lactose operon as an example.arrow_forwardWhich of the following is the most likely result of a mutation in the lac operator that prevents release of the depressor protein? Choose 1 answer: (A)The lactose permease protein will be produced, even in the absence of lactose. (B) Transcription of the structural genes will be blocked, even in the presence of lactose. (C) The catabolite activator protein will be bound to the CAP site, even in the presence of glucose. (D) Expression of the lacI gene will be repressed, even in the absence of glucose.arrow_forward
- The concentration of free glutamine affects transcription of the enzyme glutamine synthetase in E. coli. Describe the mechanism of this effect.arrow_forwardWhat is known as catabolite repression ?arrow_forwardCTP synthetase is allosterically activated by GTP. What function might this play in the cell?arrow_forward
- A certain nonsense suppressor corrects a nongrowingmutant to a state that is near, but not exactly, wild type(it has abnormal growth). Suggest a possible reason whythe reversion is not a full correction.arrow_forwardCTP synthetase catalyzes the glutamine-dependent conversion of UTP to CTP. The enzyme is allosterically inhibited by the product, CTP. Mammalian cells defective in this allosteric inhibition are found to have a complex phenotype: They require thymidine in the growth medium, they have unbalanced nucleotide pools, and they have an elevated spontaneous mutation rate. Explain the likely basis for these observations.arrow_forwardCan you explain in technical detail how global control mechanisms of catabolite repression work? Thank Youarrow_forward
- A number of mutations affect the expression of the lac operon in E. coli. Consider each genotype below and complete the table using “+” to indicate that the gene is expressed, and “−” to indicate that gene is not expressed.arrow_forwardIn terms of the efficient use of bacterial resources, explain why it is necessary for lac operon expression to be controlled both by the lac repressor and by a cyclic AMP receptor protein rather than just by the lac repressor alone.arrow_forwardPhorbol esters have been observed to induce the transcription of AP-1–influenced genes. Explain how this processcould occur. What are the consequences of AP-1 transcription? What role does intermittent exposure to phorbol estershave on an individual’s health?arrow_forward
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