Pearson eText Biology: Life on Earth with Physiology -- Instant Access (Pearson+)
12th Edition
ISBN: 9780135755785
Author: Gerald Audesirk, Teresa Audesirk
Publisher: PEARSON+
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Chapter 9, Problem 3RQ
Summary Introduction
To draw:
The stages of mitosis. Also, to determine how mitosis ensures each daughter nucleus receives a full set of chromosomes.
Concept introduction:
Mitosis is a type of cell division, which results in the formation of two identical daughter cells. Mitosis (M phase) takes place after the interphase in the cell cycle. It only occurs in vegetative cells and the ploidy of the cells remains the same. So, it is also called the equational division.
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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 9 Solutions
Pearson eText Biology: Life on Earth with Physiology -- Instant Access (Pearson+)
Ch. 9.1 - describe the types of cells found in a...Ch. 9.1 - Prob. 2CYLCh. 9.2 - describe the prokaryotic cell cycle and the major...Ch. 9.3 - describe the structure of a eukaryotic chromosome?Ch. 9.3 - describe the functions of telomeres and...Ch. 9.4 - Body, Heal Thyself Ligaments and tendons have a...Ch. 9.4 - describe the events of the eukaryotic cell cycle?Ch. 9.4 - explain the difference between mitotic cell...Ch. 9.5 - What would the consequences be if one set of...Ch. 9.5 - Body, Heal Thyself The precision of mitotic cell...
Ch. 9.5 - describe the steps of mitotic cell division?Ch. 9.5 - describe the usual outcome of mitotic cell...Ch. 9.5 - Prob. 3CYLCh. 9.6 - The saliva of dogs, like the saliva of most...Ch. 9.6 - describe the interactions among growth factors,...Ch. 9.6 - explain how a cell protects against producing...Ch. 9.6 - Yesterday, when Daniel was showering after a...Ch. 9.6 - Prob. 2TCCh. 9 - A cell that remains capable of dividing throughout...Ch. 9 - Prob. 2MCCh. 9 - Prob. 3MCCh. 9 - How does prokaryotic fission differ from...Ch. 9 - Prob. 5MCCh. 9 - The genetic material of all living organisms is...Ch. 9 - Prokaryotic cells divide by a process called...Ch. 9 - Prob. 3FIBCh. 9 - Prob. 4FIBCh. 9 - The four phases of mitosis are _________,...Ch. 9 - Prob. 6FIBCh. 9 - Diagram and describe the eukaryotic cell cycle....Ch. 9 - Prob. 2RQCh. 9 - Prob. 3RQCh. 9 - Define the following terms: centromere, telomere,...Ch. 9 - Prob. 5RQCh. 9 - Prob. 6RQCh. 9 - Prob. 7RQCh. 9 - Most nerve cells in the adult human central...Ch. 9 - Prob. 2AC
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