Inquiry into Life
16th Edition
ISBN: 9781260482638
Author: Mader, Sylvia
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Chapter 26.1, Problem 1AQTC
Summary Introduction
To analyze:
The consequence of unintentional breaks in DNA sequences other than the target sequence due to CRISPR.
Introduction:
CRISPR or Clustered Regularly Interspaced Short Palindromic Repeats are DNA sequences present in prokaryotes. They along with the enzyme Cas9 are part of the defense system of prokaryotes. Now, the CRISPR-Cas9 system is used as a gene-editing tool. It can break DNA strands at the desired location where the gene sequence can be modified according to our requirement.
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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 26 Solutions
Inquiry into Life
Ch. 26.1 - Describe the steps in forming Recombinant DNA.Ch. 26.1 - Discuss how the polymerase chain reaction works.Ch. 26.1 - Prob. 3LOCh. 26.1 - Prob. 1QTCCh. 26.1 - Prob. 2QTCCh. 26.1 - Prob. 1CYPCh. 26.1 - Explain how the PCR reaction amplifies a segment...Ch. 26.1 - Prob. 3CYPCh. 26.1 - Prob. 1AQTCCh. 26.1 - Prob. 2AQTC
Ch. 26.2 - Prob. 1LOCh. 26.2 - Prob. 2LOCh. 26.2 - Prob. 1QTCCh. 26.2 - Prob. 2QTCCh. 26.2 - Prob. 3QTCCh. 26.2 - Prob. 1CYPCh. 26.2 - Prob. 2CYPCh. 26.3 - Compare and contrast in vivo and ex vivo gene...Ch. 26.3 - Prob. 2LOCh. 26.3 - Prob. 1CYPCh. 26.3 - Prob. 2CYPCh. 26.3 - Prob. 3CYPCh. 26.4 - Prob. 1LOCh. 26.4 - Prob. 2LOCh. 26.4 - Prob. 3LOCh. 26.4 - Prob. 1CYPCh. 26.4 - Explain how comparative genomics can provide...Ch. 26.4 - Prob. 3CYPCh. 26 - Prob. S25.1BYBCh. 26 - Prob. S25.2BYBCh. 26 - Prob. S25.3BYBCh. 26 - Prob. 1ACh. 26 - Prob. 2ACh. 26 - The polymerase chain reaction Use RNA polymerase...Ch. 26 - Prob. 4ACh. 26 - Prob. 5ACh. 26 - In this process, cells are removed from the body...Ch. 26 - When a cloned gene is used to modify a human...Ch. 26 - Prob. 8ACh. 26 - Prob. 9ACh. 26 - Prob. 10ACh. 26 - Prob. 1TCCh. 26 - In a genomic comparison between humans and yeast,...
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