EBK ESSENTIALS OF BIOLOGY
4th Edition
ISBN: 9780100237209
Author: Mader
Publisher: YUZU
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Chapter 15, Problem S1.2CTC
Summary Introduction
To describe:
The importance of evolution and natural selection in the study of biology.
Given:
Evolution and natural selection is important in the study of biology
Introduction:
Evolution is the branch of biology which deals with the scientific explanation for the diversity of life forms. It also explains the similarities and dissimilarities among the vastly different forms of living creatures. Theodosius Dobzhansky, one of the eminent scientists in the field of evolution stated, “Nothing in biology makes sense except in the light of evolution”. Natural selection is one of the basic concepts of evolution which is responsible for the evolution of adaptive features among the individuals of the population.
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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 15 Solutions
EBK ESSENTIALS OF BIOLOGY
Ch. 15.1 - Describe the three types of natural...Ch. 15.1 - Prob. 2LOCh. 15.1 - Prob. 1CYPCh. 15.1 - Prob. 2CYPCh. 15.1 - List the forces that help maintain genetic...Ch. 15.1 - Prob. 4CYPCh. 15.1 - Prob. 1ACh. 15.1 - Prob. 2ACh. 15.1 - Prob. 3ACh. 15.1 - choose the type of selection that best matches the...
Ch. 15.1 - Prob. 5ACh. 15.2 - Prob. 1LOCh. 15.2 - Prob. 2LOCh. 15.2 - Prob. 3LOCh. 15.2 - Prob. 1CYPCh. 15.2 - Prob. 2CYPCh. 15.2 - List the live factors that prevent microevolution...Ch. 15.2 - Prob. 4CYPCh. 15.2 - Prob. 5CYPCh. 15.2 - Prob. 6CYPCh. 15.2 - Prob. 6ACh. 15.2 - Prob. 7ACh. 15.2 - Prob. 8ACh. 15.2 - Prob. 9ACh. 15.2 - Prob. 10ACh. 15 - Prob. S1.2BYBCh. 15 - Prob. S9.3BYBCh. 15 - Prob. S14.1BYBCh. 15 - Prob. 1BYBCh. 15 - Prob. 2BYBCh. 15 - Prob. 3BYBCh. 15 - Prob. S1.2CTCCh. 15 - Section 14.1 explains how natural selection plays...Ch. 15 - Prob. S16.1CTCCh. 15 - Prob. 1TCCh. 15 - Prob. 2TC
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