EBK INTEG.PRIN.OF ZOOLOGY
18th Edition
ISBN: 9781260411201
Author: HICKMAN
Publisher: MCG COURSE
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Chapter 23, Problem 9RQ
Summary Introduction
To determine: The three groups of adaptations that guided the vertebrate evolution and its contribution to the success of vertebrates.
Introduction: The chordates share a large number of characteristics with the deuterostomes that indicates the origin of the chordates from the deuterostomes. The features common to both deuterostomes and chordates include the presence of radial cleavage, the first embryonic opening forming the anus.
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Please answer q3
Respond to the following in a minimum of 175 words:
How might CRISPR-Cas 9 be used in research or, eventually, therapeutically in patients?
What are some potential ethical issues associated with using this technology?
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)
(b) Which population has the highest narrow sense heritability for height?
Explain your answer. (2 pts)
(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)
Short
(b)
Short
Tall
Short
Tall
Short
Short
Tall
Midparent height
(average height of
Mean of population = 65 inches
Mean of breading parents = 70 inches
Mean of population = 65 inches
Mean of breading parents = 70 inches
Mean of population = 65 inches
Mean of breading parents = 70 inches
Chapter 23 Solutions
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