BIOLOGY
5th Edition
ISBN: 9781265202859
Author: BROOKER
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Chapter 2, Problem 2TY
Summary Introduction
Introduction: Atom is the smallest structural unit of any matter. The nucleus is the centermost part of the atom. The atom consists of proton, electron and neutron. Multiple numbers of atoms are joined together and form the molecules. The presence of shells and orbitals are found in the structure of the atom.
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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 2 Solutions
BIOLOGY
Ch. 2.1 - Before the experiment conducted by Ernest...Ch. 2.1 - What was the hypothesis tested by Rutherford?Ch. 2.1 - Prob. 3EQCh. 2.1 - Explain the difference between an electron shell...Ch. 2.2 - Core Skill: Modeling The goal of this modeling...Ch. 2.2 - Prob. 1CCCh. 2.3 - When oil dissolves in a soapy solution, where is...Ch. 2.4 - Core Skill: Connections Look ahead to Figure...Ch. 2 - _______________ make(s) up the nucleus of an atom....Ch. 2 - Prob. 2TY
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