BROCK BIOL. OF MICROORGAN.-W/ACCESS >I
15th Edition
ISBN: 9780134810058
Author: MADIGAN
Publisher: PEARSON
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Chapter 7.2, Problem 2MQ
Summary Introduction
The time taken by a bacterial cell to double in number during a stipulated time is known as the generation time. This time of generation will vary depending upon the organism. The generation time of E. coli is 20 minutes and in S. aureus it is 30 minutes. The process by which the circular chromosome of bacteria divides into two is known as replication. This process occurs during the binary fission.
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Chapter 7 Solutions
BROCK BIOL. OF MICROORGAN.-W/ACCESS >I
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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- A 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_forwardIn a rapidly changing environment, which bacterial population would likely be more successful: one that has individuals capable of conjugation or one that does not? Explain.arrow_forwardIn the bacterial transformation experiment, what is the primary purpose of using an ampicillin-containing medium? LB agar is __________.arrow_forward
- Give two reasons why E. coli is naturally resistant to antibiotics like Penicillin?arrow_forwardWould you expect transfer of chromosomal DNA by conjugation to be more efficient if cells were plated together on solid medium (agar) or mixed together in a liquid in a shaking flask? Explain.arrow_forwardA media contains 2 E. coli cells which have a generation time and a replication time of 60 and 40 mins respectively. How many cells will be produced after 5 hours?arrow_forward
- Determine the method of distinguishing whether the bacteria has penicillinase activity or if the bacteria have acquired mutation with the help of radioactively labelled penicillin.arrow_forwardExplain why both ssDNA and RNA are single strands, but there is a difference in concentration. (Using spectrophotometer)arrow_forwardCompare and contrast conjugation involving an F+ donor, an Hfr strain, and an F' donor.arrow_forward
- Define the following terms: Bacteriophage λ DNA Plasmid Maparrow_forwardexplain:The process by which alteration in the genetic makeup of live type IIR bacteria was performed by heat killed type IIIS bacteria.arrow_forwardDescribe the process of bacterial transformation, describe the controls and methods you would use to ensure that you have successfully isolated transformed bacterial coloniesarrow_forward
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