Microbiology Fundamentals: A Clinical Approach
3rd Edition
ISBN: 9781259709227
Author: Marjorie Kelly Cowan Professor, Heidi Smith
Publisher: McGraw-Hill Education
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Chapter 4, Problem 3Q
Summary Introduction
To explain:
A scenario in which it would be advantageous for the Last Common Ancestor to use RNA, while it would be advantageous for its descendants to use DNA.
Introduction:
The bacteria, archaea,and eukaryotes all have evolved from different kind of cells. The precursor of eukaryotes and prokaryotes is known as “Last common ancestor” (LCA). Theory of endosymbiosis explains that a bacterial cell engulfed the descendent cell of LCA (pre eukaryotic) and became the permanent part of LCA cell serving as mitochondria. Later with time, this association gave rise to the formation of the first eukaryotic cell.
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Respond to the following in a minimum of 175 words:
How might CRISPR-Cas 9 be used in research or, eventually, therapeutically in patients?
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Do the advantages of using this technology outweigh the disadvantages (or vice versa)? Explain your position.
You are studying the effect of directional selection on body height in three
populations (graphs a, b, and c below).
(a) What is the selection differential? Show your calculation. (2 pts)
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(c) If you examined the offspring in the next generation in each population,
which population would have the highest mean height? Why? (2 pts)
(a)
Midoffspring height (average height of offspring)
Short
Short
Short
Short
(c)
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(b)
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Tall
Short
Tall
Short
Short
Tall
Midparent height
(average height of
Mean of population = 65 inches
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Mean of population = 65 inches
Mean of breading parents = 70 inches
Mean of population = 65 inches
Mean of breading parents = 70 inches
Chapter 4 Solutions
Microbiology Fundamentals: A Clinical Approach
Ch. 4.1 - Relate bacterial, archaeal, and eukaryotic cells...Ch. 4.1 - List the types of eukaryotic microorganisms, and...Ch. 4.2 - Differentiate among the flagellar structures of...Ch. 4.2 - List similarities and differences between...Ch. 4.2 - Describe the main structural components of a...Ch. 4.2 - Diagram how the nucleus, endoplasmic reticulum,...Ch. 4.2 - Prob. 7AYPCh. 4.2 - Explain the importance of ribosomes, and...Ch. 4.2 - List and describe the three main fibers of the...Ch. 4.2 - Prob. 10AYP
Ch. 4.2 - Prob. 1NPCh. 4.3 - Prob. 11AYPCh. 4.3 - Prob. 12AYPCh. 4.3 - Differentiate among the terms heterotroph,...Ch. 4.3 - Prob. 14AYPCh. 4.3 - Prob. 15AYPCh. 4.3 - Q. Yeast infection is one common side effect of...Ch. 4.3 - Prob. 2MMCh. 4.4 - Prob. 16AYPCh. 4.4 - Prob. 17AYPCh. 4.4 - Explain why a cyst stage may be useful to a...Ch. 4.4 - Prob. 19AYPCh. 4.4 - Prob. 2NPCh. 4.5 - Prob. 20AYPCh. 4.5 - Summarize the stages of a typical helminth life...Ch. 4.5 - Prob. 3NPCh. 4.5 - Prob. 3MMCh. 4 - Mitochondria likely originated from a. archaea. b....Ch. 4 - Summarize the endosymbiotic theory and explain how...Ch. 4 - Prob. 3QCh. 4 - Prob. 4QCh. 4 - Compare and contrast the structure and function of...Ch. 4 - Prob. 6QCh. 4 - Prob. 7QCh. 4 - Considering the role of fungi in nature, speculate...Ch. 4 - Prob. 9QCh. 4 - Prob. 10QCh. 4 - Prob. 11QCh. 4 - Prob. 12QCh. 4 - Prob. 13QCh. 4 - Prob. 14QCh. 4 - Do you suppose any of these eukaryotic microbes...Ch. 4 - Which of these groups causes the most casualties...Ch. 4 - Prob. 17QCh. 4 - Do you suspect that the fact that humans use...Ch. 4 - Which of the following is not useful to determine...Ch. 4 - Why were protozoa originally considered a single...Ch. 4 - Write a paragraph that would explain the...Ch. 4 - From chapter 2, figure 2.1. Discuss how the...
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Endosymbiotic Theory; Author: Amoeba Sisters;https://www.youtube.com/watch?v=FGnS-Xk0ZqU;License: Standard Youtube License