BIOLOGY
12th Edition
ISBN: 9781260169614
Author: Raven
Publisher: RENT MCG
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Chapter 27.3, Problem 1LO
Summary Introduction
To determine: The different types of methods of DNA exchange in the prokaryotes.
Introduction: Horizontal gene transfer can be defined as the exchange of genetic contents between the unicellular and multi-cellular organisms that do not include the transmission of DNA from parent to offspring. This process is responsible for evolution by mixing the genetic material of two species.
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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 27 Solutions
BIOLOGY
Ch. 27.1 - Prob. 1LOCh. 27.1 - Prob. 2LOCh. 27.1 - Describe classification systems for prokaryotes.Ch. 27.2 - Prob. 1LOCh. 27.2 - Prob. 2LOCh. 27.2 - Prob. 3LOCh. 27.3 - Prob. 1LOCh. 27.3 - Prob. 2LOCh. 27.3 - Prob. 3LOCh. 27.4 - Describe the metabolic strategies employed by...
Ch. 27.4 - Compare and contrast the ways prokaryotes can...Ch. 27.5 - Describe the role of prokaryotes in biogeochemical...Ch. 27.5 - Prob. 2LOCh. 27.5 - Prob. 3LOCh. 27.6 - Prob. 1LOCh. 27.6 - Prob. 2LOCh. 27.6 - Prob. 3LOCh. 27 - Data analysis If the excision of an F plasmid Is...Ch. 27 - Prob. 1IQCh. 27 - Prob. 1UCh. 27 - A bacteria that obtains carbon from the atmosphere...Ch. 27 - Prob. 3UCh. 27 - Bacteria and archaebacteria may be distinguished...Ch. 27 - Prob. 5UCh. 27 - Prob. 6UCh. 27 - Prob. 7UCh. 27 - Prob. 1ACh. 27 - Prob. 2ACh. 27 - Prob. 3ACh. 27 - Prob. 4ACh. 27 - Prob. 5ACh. 27 - Some bacteria are capable of forming NH4+ from...Ch. 27 - Prob. 7ACh. 27 - Prob. 1SCh. 27 - Prob. 2SCh. 27 - Use of multiple antibiotics is not a bad idea if...Ch. 27 - Soil-based nitrogen-fixing bacteria appear to be...
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