Brock Biology of Microorganisms (15th Edition)
15th Edition
ISBN: 9780134261928
Author: Michael T. Madigan, Kelly S. Bender, Daniel H. Buckley, W. Matthew Sattley, David A. Stahl
Publisher: PEARSON
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Chapter 16.18, Problem 1CR
Summary Introduction
Thermodesulfobacteria and Thermotogae form two intensely branching phyla within the bacteria. These are hyperthermophilic bacteria demonstrated that horizontal gene transfer has occurred from Archaea to bacteria. Thermocrinis, Thermotoga, and Aquifex are extremophiles. They can grow optimally at extremely high temperatures.
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19. On the diagram below
a. Label the three pictures as: DNA; polypeptide; or RNA.
b. Label the arrows as: translation or transcription/RNA processing.
c. Add the following details to the diagram.
Promoter region
TATA box
Transcription start site
Transcription terminator
Intron (A,B,C,D)
Exons (1,2,3,4,5)
Splice sites
5' cap
5' UTR (untranslated region)
3' poly A tail
3' UTR (untranslated region)
Translational start (AUG)
Translational stop (UGA, UAG, or UAA)
N and C ends of polypeptide
0000
Match the letter labels in the figure below to the terms. Some letter
labels are not used.
MNNNNNNIN
M
C
B
A
M
D
F
E
H
K
G
8
The diagram below illustrates a quorum sensing pathway from Staphylococcus aureus. Please answer the following questions.
1. Autoinduction is part of the quorum sensing system. Which promoter (P2 or P3) is critical for autoinduction?
2)This staphylococcus aureus grows on human wounds, causing severe infections. You would like to start a clinical trial to treat these wound infections. Please describe:
a) What molecule do you recommend for the trial. Why?
b) Your trial requires that Staphylococcus aureus be isolated from the wound and submitted to genome sequencing before admittance. Why? What are you testing for?
3) If a mutation arises where the Promoter P3 is constitutively active, how would that influence sensitivity to AIP? Please explain your rationale.
4) This pathway is sensitive to bacterial cell density. Describe two separate mutation that would render the pathway active independent of cell density. Briefly explain your rationale.
Mutation 1
Mutation 2
Chapter 16 Solutions
Brock Biology of Microorganisms (15th Edition)
Ch. 16.1 - What are some ways in which Wolbachia species can...Ch. 16.1 - Prob. 2MQCh. 16.1 - Which genera of Alphaproteobacteria are known to...Ch. 16.2 - Prob. 1MQCh. 16.2 - Prob. 2MQCh. 16.2 - Prob. 1CRCh. 16.3 - Prob. 1MQCh. 16.3 - Prob. 2MQCh. 16.3 - What is the catalase test? What catalase reaction...Ch. 16.4 - What species of Pseudomonas is a common cause of...
Ch. 16.4 - What major characteristic could be used to...Ch. 16.4 - Prob. 1CRCh. 16.5 - What four metabolic traits are most common in...Ch. 16.5 - Why is Wolinella physiologically unusual among the...Ch. 16.5 - Prob. 1CRCh. 16.6 - Prob. 1MQCh. 16.6 - How can Streptococcus pyogenes be distinguished...Ch. 16.6 - What is the difference between homofermentative...Ch. 16.7 - Prob. 1MQCh. 16.7 - What characteristics differentiate Sarcina from...Ch. 16.7 - What characteristics of Listeria make it a...Ch. 16.8 - What is the major physiological distinction...Ch. 16.8 - What is the crystalline protein made by Bacillus...Ch. 16.8 - What is a good strategy for isolating...Ch. 16.9 - Prob. 1MQCh. 16.9 - Prob. 2MQCh. 16.9 - Prob. 1CRCh. 16.10 - What is snapping division and what organism...Ch. 16.10 - What organism is involved in the production of...Ch. 16.10 - Prob. 1CRCh. 16.11 - What is mycolic acid, and what properties does...Ch. 16.11 - Prob. 1CRCh. 16.12 - Prob. 1MQCh. 16.12 - Prob. 2MQCh. 16.12 - How are the spares of streptomycetes different...Ch. 16.13 - Prob. 1MQCh. 16.13 - What species of Bacteroidetes is most abundant in...Ch. 16.14 - Describe a method for isolating Cytophaga species...Ch. 16.14 - Prob. 2MQCh. 16.14 - Prob. 1CRCh. 16.15 - How are Chlamydia and Mycoplasma (Section 16.9)...Ch. 16.15 - Prob. 2MQCh. 16.15 - Prob. 1CRCh. 16.16 - Prob. 1MQCh. 16.16 - Prob. 2MQCh. 16.16 - What are two types of intracellular compartments...Ch. 16.17 - Prob. 1MQCh. 16.17 - Prob. 1CRCh. 16.18 - What is unique about the genome of Thermotoga and...Ch. 16.18 - Prob. 1CRCh. 16.19 - Prob. 1MQCh. 16.19 - Prob. 1CRCh. 16.20 - Describe a commercial application of Thermus...Ch. 16.20 - Describe an unusual biological feature of...Ch. 16.20 - What are some of the remarkable properties that...Ch. 16.21 - Prob. 1MQCh. 16.21 - Prob. 2MQCh. 16.21 - Prob. 3MQCh. 16.21 - Prob. 1CRCh. 16 - Enteric bacteria, lactic acid bacteria, and...Ch. 16 - Microorganisms can have a variety of different...
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