Brock Biology of Microorganisms - MasteringBiology With eText - Access
15th Edition
ISBN: 9780134602288
Author: MADIGAN
Publisher: PEARSON
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Chapter 7.10, Problem 2MQ
Summary Introduction
Peptidoglycan otherwise murein is a kind of
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Chapter 7 Solutions
Brock Biology of Microorganisms - MasteringBiology With eText - Access
Ch. 7.1 - What is the utility of a reporter gene?Ch. 7.1 - Prob. 2MQCh. 7.1 - Prob. 1CRCh. 7.2 - Prob. 1MQCh. 7.2 - Prob. 2MQCh. 7.2 - Prob. 1CRCh. 7.3 - What is the divisome?Ch. 7.3 - How does FtsZ find the cell midpoint of a...Ch. 7.3 - What is the role of the penicillin-binding protein...Ch. 7.4 - How does MreB control the shape of a rod-shaped...
Ch. 7.4 - What protein is thought to control the shape of...Ch. 7.4 - What relationships exist between cytoskeletal...Ch. 7.4 - What morphology do cells have that lack MreB or...Ch. 7.5 - Prob. 1MQCh. 7.5 - What is transpeptidation and why is it important...Ch. 7.5 - Prob. 1CRCh. 7.6 - How are different sets of genes expressed in the...Ch. 7.6 - Prob. 2MQCh. 7.6 - Prob. 1CRCh. 7.7 - Why are the levels of DnaA protein controlled...Ch. 7.7 - Prob. 2MQCh. 7.7 - Prob. 1CRCh. 7.8 - Prob. 1MQCh. 7.8 - What is the major transcriptional regulator that...Ch. 7.8 - What is meant by "patterning" during heterocyst...Ch. 7.9 - What are the four basic stages of biofilm...Ch. 7.9 - Besides autoinducer synthesis, what intracellular...Ch. 7.9 - What type of genes does c-di-GMP activate during...Ch. 7.10 - Describe two targets of antibiotics and discuss...Ch. 7.10 - Prob. 2MQCh. 7.10 - Prob. 3MQCh. 7.10 - Prob. 1CRCh. 7.11 - Is persistence a heritable trait?Ch. 7.11 - What prevents the toxin component of TA modules...Ch. 7.11 - Prob. 3MQCh. 7.11 - Prob. 1CRCh. 7 - If DnaA was not regulated in Escherichia coli and...Ch. 7 - Explain how cells exhibiting different phenotypes...Ch. 7 - Describe how you would genetically design a...
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- What are the properties of F+, F-, and Hfr cells of E. coli?arrow_forwardHow might a bacteriophage be used to treat bacterial infections in humans?arrow_forwardWhat would happen to a bacteria that lost a plasmid for antibiotic resistance? Would it still be able to grow in normal growth conditions? Explain.arrow_forward
- Describe ,A Hfr bacterium mates with an F- plasmid containing bacterium. What will be the type of bacteria after conjugation is complete?arrow_forwardResults from a Kirby Bauer antibiotic assay on a Gram-negative bacterial culture are described as follows: A) the bacterium is resistant to penicillin, an antibiotic that targets synthesis of the peptidoglycan cell wall and B) the bacterium is resistant to tetracycline, an antibiotic that targets the small subunit of the ribosome, inhibiting protein synthesis. Which of the results represents intrinsic resistant and which represents acquired resistants?arrow_forwardFor the Endocytic pathway• What is the general composition of lysosomes? How are they formed? How do they obtain low pH? Why is their low pH important?arrow_forward
- What is the major difference between bacterial ribosomes and eukaryotic ribosomes that makes it possible to target bacterial ribosomes without harming our own cells?arrow_forwardA conjugation-deficient strain of A. radiobacter is used to combat crown gall disease. Explain how this bacterium prevents the disease, and describe the advantage of using a conjugation-deficient strain.arrow_forwardWhen bacteriophage P1 causes E. coli to lyse, the resulting materialis called a P1 lysate. What type of genetic material would befound in most of the P1 phages in the lysate? What kind of geneticmaterial is occasionally found within a P1 phage?arrow_forward
- You have isolated a strain of E.coli that is resistant to penicillin,streptomycin,chloramphenicol and tetracycline. You also observe that when you mix this strain with a strain that is sensitive to all four antibiotics, the new strain becomes resistant to streptomycin,penicillin and chloramphenicol but not tetracycline. Explain how this is so?arrow_forwardIn Kornberg’s initial experiments, it was rumored that he grew E. coli in Anheuser-Busch beer vats. (Kornberg was working at Washington University in St. Louis.) Why do you think this might have been helpful to the experiment?arrow_forwardAn E. coli colony grew on minimal medium supplemented with arginine and leucine. However, bacteria from this colony are unable to grow and form colonies on minimal medium supplemented with arginine and methionine. What is the genotype of the bacteria in this E. coli colony?arrow_forward
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