LIFE: THE SCIENCE OF BIOLOGY
11th Edition
ISBN: 9781319145125
Author: Sadava
Publisher: MAC HIGHER
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Chapter 44.2, Problem 4R
Summary Introduction
To review:
The reason behind a test performed by the physician to diagnose a demyelinating disease.
Introduction:
All the information in our body is transferred by the nerves after generation of an action potential. The conduction of information in the form of an electrical impulse is performed when an action potential travels from one nerve cell to another or from one nerve cell to a muscle cell. It is given that the test for the velocity of nerve conduction is performed by electrically stimulating a nerve at one end and recording the response of muscle response at a distal position.
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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 44 Solutions
LIFE: THE SCIENCE OF BIOLOGY
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