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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Question
Chapter 23, Problem 11WIO
Summary Introduction
To determine:
The nonbiological examples of negative and positive feedback.
Introduction:
Feedback can be defined as a process by which output of a particular system is routed back as specific inputs as a part of cause-and-effect on the body. Two types of feedback mechanisms are present that can be categorized into positive feedback and negative feedback.
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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 23 Solutions
Connect with LearnSmart for Hoefnagels: Biology: The Essentials
Ch. 23.1 - Prob. 1MCCh. 23.1 - Prob. 2MCCh. 23.2 - If you were given a microscope slide with a slice...Ch. 23.2 - Prob. 2MCCh. 23.3 - Which organ systems contribute to each of the five...Ch. 23.3 - Prob. 2MCCh. 23.4 - Use figure 23.7 to explain which materials enter...Ch. 23.4 - Prob. 2MCCh. 23.5 - Describe the difference between endotherms and...Ch. 23.5 - Prob. 2MC
Ch. 23 - Which of the following represents the correct...Ch. 23 - Prob. 2MCQCh. 23 - Prob. 3MCQCh. 23 - Blood differs from other types of connective...Ch. 23 - Prob. 5MCQCh. 23 - Prob. 6MCQCh. 23 - Prob. 7MCQCh. 23 - Prob. 8MCQCh. 23 - Prob. 9MCQCh. 23 - Distinguish between the following pairs of terms....Ch. 23 - Where do epithelial tissues occur, and how are...Ch. 23 - List and describe six types of connective tissue.Ch. 23 - Prob. 4WIOCh. 23 - Prob. 5WIOCh. 23 - Use the Internet to research cosmetic surgery....Ch. 23 - Prob. 7WIOCh. 23 - Prob. 8WIOCh. 23 - Make a chart that compares and contrasts the...Ch. 23 - Prob. 10WIOCh. 23 - Prob. 11WIOCh. 23 - Prob. 12WIOCh. 23 - Prob. 13WIOCh. 23 - Prob. 14WIOCh. 23 - Would an alligator require more, less, or the same...Ch. 23 - Prob. 16WIOCh. 23 - Prob. 17WIOCh. 23 - Prob. 1SLCh. 23 - Prob. 1PITCh. 23 - Prob. 2PITCh. 23 - Prob. 3PIT
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