Connect with LearnSmart for Hoefnagels: Biology: The Essentials
3rd Edition
ISBN: 9781260140712
Author: MariÂlle Hoefnagels
Publisher: Mcgraw-hill Higher Education (us)
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Chapter 20.3, Problem 3MC
Summary Introduction
To determine:
The effect of smog, particulates, the thinning ozone layer, and acid deposition on life.
Introduction:
Air pollution that forms a visible haze in the lower atmosphere is known as smog. Photochemical smog is formed due to the reaction of nitrogen oxides and vehicular emissions in the presence of light. The reaction of sulfur and nitrogen oxides with water results in acid deposition.
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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 20 Solutions
Connect with LearnSmart for Hoefnagels: Biology: The Essentials
Ch. 20.1 - Prob. 1MCCh. 20.1 - Prob. 2MCCh. 20.1 - Prob. 3MCCh. 20.1 - Prob. 4MCCh. 20.2 - Prob. 1MCCh. 20.2 - Prob. 2MCCh. 20.2 - Prob. 3MCCh. 20.3 - How do toxic chemicals, nutrients, sediments, and...Ch. 20.3 - Prob. 2MCCh. 20.3 - Prob. 3MC
Ch. 20.4 - Why is CO2 accumulating in Earths atmosphere?Ch. 20.4 - Prob. 2MCCh. 20.4 - Prob. 3MCCh. 20.5 - Prob. 1MCCh. 20.5 - Prob. 2MCCh. 20.5 - Prob. 3MCCh. 20.6 - Prob. 1MCCh. 20.6 - Prob. 2MCCh. 20.6 - Prob. 3MCCh. 20 - Prob. 1MCQCh. 20 - What activity is the main cause of expanding...Ch. 20 - What is the connection between agriculture in the...Ch. 20 - What is the greenhouse effect? a. The filtering of...Ch. 20 - Prob. 5MCQCh. 20 - Prob. 6MCQCh. 20 - Prob. 7MCQCh. 20 - Prob. 8MCQCh. 20 - Prob. 1WIOCh. 20 - Prob. 2WIOCh. 20 - Prob. 3WIOCh. 20 - Prob. 4WIOCh. 20 - Prob. 5WIOCh. 20 - Prob. 6WIOCh. 20 - Prob. 7WIOCh. 20 - Prob. 8WIOCh. 20 - Prob. 9WIOCh. 20 - Prob. 10WIOCh. 20 - Prob. 11WIOCh. 20 - Prob. 12WIOCh. 20 - Prob. 13WIOCh. 20 - Prob. 14WIOCh. 20 - Prob. 15WIOCh. 20 - Prob. 16WIOCh. 20 - Prob. 17WIOCh. 20 - Prob. 18WIOCh. 20 - Prob. 1SLCh. 20 - Prob. 2SLCh. 20 - Review the Survey the Landscape figure in the...Ch. 20 - Prob. 2PIT
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- Below is a diagram from a genomic locus of a bacterial genome. Each arrow represents a coding region, and the arrowheads indicate its orientation in the genome. The numbers are randomly assigned. Draw the following features on the diagram, and explain your rationale for each feature: 10 12 合會會會會長 6 a) Expected transcriptions, based on known properties of bacterial genes and operons. How many proteins are encoded in each of the transcripts? b) Location of promoters (include rationale) c) Location of transcriptional terminators (include rationale) d) Locations of Shine-Dalgarno sequences (include rationale)arrow_forwardSample excuse letter in school class for the reasons of headaches and dysmenorrhea caused by menstrual cyclearrow_forwardHow do the muscles on the foot work to balance on an ice skate, specifically the triangle of balance and how does it change when balancing on an ice skate? (Refer to anatomy, be specific)arrow_forward
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