CONNECT WITH LEARNSMART FOR COWAN: MICR
3rd Edition
ISBN: 2818440123740
Author: Cowan
Publisher: MCG
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Chapter 21.4, Problem 12AYP
Summary Introduction
To explain:
Most important risk group for Streptococcus infection and reason behind their importance.
Concept introduction:
Group B Streptococcus infection is caused by Streptococcus bacterial strain. The most common mode of transmission is the vertical transmission. Diagnosis of the disease is carried out by taking samples from the genital tract of the mother.
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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 21 Solutions
CONNECT WITH LEARNSMART FOR COWAN: MICR
Ch. 21.1 - Prob. 1AYPCh. 21.1 - Prob. 2AYPCh. 21.2 - Prob. 3AYPCh. 21.3 - List the possible causative agents, modes of...Ch. 21.3 - Discuss important features of leptospirosis.Ch. 21.3 - Prob. 1NPCh. 21.3 - Medical Moment Cranberry versus UTI It has long...Ch. 21.4 - List the possible causative agents, modes of...Ch. 21.4 - Prob. 7AYPCh. 21.4 - Prob. 8AYP
Ch. 21.4 - Prob. 9AYPCh. 21.4 - Prob. 10AYPCh. 21.4 - Prob. 11AYPCh. 21.4 - Prob. 12AYPCh. 21.4 - Prob. 2NPCh. 21.4 - Prob. 3NPCh. 21.4 - Prob. 2MMCh. 21 - Prob. 1QCh. 21 - Some of the E. coli strains that are normal biota...Ch. 21 - Many STIs are asymptomatic, or remain latent for...Ch. 21 - Prob. 4QCh. 21 - Three microorganisms in this chapter can be...Ch. 21 - Prob. 6QCh. 21 - Prob. 7QCh. 21 - Prob. 8QCh. 21 - Prob. 9QCh. 21 - Prob. 10QCh. 21 - Prob. 11QCh. 21 - Prob. 12QCh. 21 - Prob. 13QCh. 21 - Prob. 14QCh. 21 - Prob. 15QCh. 21 - Prob. 16QCh. 21 - Prob. 17QCh. 21 - Prob. 18QCh. 21 - Prob. 19QCh. 21 - Prob. 20QCh. 21 - Prob. 21QCh. 21 - Prob. 1VC
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