Essentials of Biology (5th International Edition)
5th Edition
ISBN: 9781259660269
Author: Sylvia S. Mader, Dr., Michael Windelspecht
Publisher: Mcgraw-Hill
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Chapter 17.3, Problem 1LO
Summary Introduction
To discuss:
The role of chemical and biological evolution in the formation of the first cell.
Introduction:
The first living cells originated are prokaryotic cells. The prokaryotic cell possesses DNA (deoxyribonucleic acid) without a distinct nucleus. These prokaryotic cells are evolved chemically and biologically.
The biotic synthesis of building blocks of biological macromolecules such as proteins,
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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 17 Solutions
Essentials of Biology (5th International Edition)
Ch. 17.1 - Describe the structure of a virus.Ch. 17.1 - Explain the basis of viral host specificity.Ch. 17.1 - Prob. 3LOCh. 17.1 - Prob. 1ACh. 17.1 - Prob. 2ACh. 17.1 - Prob. 3ACh. 17.2 - Prob. 1LOCh. 17.2 - Prob. 1CYPCh. 17.2 - Prob. 2CYPCh. 17.2 - Prob. 3CYP
Ch. 17.2 - Prob. 4ACh. 17.2 - Prob. 5ACh. 17.3 - Prob. 1LOCh. 17.3 - Prob. 2LOCh. 17.3 - Prob. 3LOCh. 17.3 - Prob. 4LOCh. 17.3 - Prob. 1CYPCh. 17.3 - Prob. 2CYPCh. 17.3 - Prob. 3CYPCh. 17.3 - Prob. 4CYPCh. 17.3 - A bacterium contains all of the following. except...Ch. 17.3 - For questions 7-12. determine which organisms are...Ch. 17.3 - Prob. 8ACh. 17.3 - Prob. 9ACh. 17.3 - Prob. 10ACh. 17.3 - Prob. 11ACh. 17.3 - Prob. 12ACh. 17.4 - Prob. 1LOCh. 17.4 - Prob. 2LOCh. 17.4 - Prob. 3LOCh. 17.4 - Prob. 1CYPCh. 17.4 - Prob. 2CYPCh. 17.4 - Prob. 3CYPCh. 17.4 - Prob. 13ACh. 17.4 - Prob. 14ACh. 17.4 - Prob. 15ACh. 17 - Prob. 1BYBCh. 17 - Prob. 2BYBCh. 17 - Prob. F16.20BYBCh. 17 - Prob. F4.2BYBCh. 17 - Prob. 1TCCh. 17 - 2. In the former Soviet Union and Eastern Europe,...Ch. 17 - Prob. 3TC
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