LIFE: THE SCIENCE OF BIOLOGY
11th Edition
ISBN: 9781319145125
Author: Sadava
Publisher: MAC HIGHER
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Chapter 46.2, Problem 2R
Summary Introduction
To review:
The reasons why a greater response is generated in the retinal ganglion cell by a small spot of light falling on the retina than a large spot of light.
Introduction:
Retinal ganglion cells are neurons located near the retina of eye. They receive information from the photoreceptor cells and transmit action potentials to the thalamus and the visual cortex of the brain. The brain processes this information and sends signals which make vision possible.
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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?
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)
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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)
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Short
Short
(c)
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(b)
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Tall
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Tall
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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 46 Solutions
LIFE: THE SCIENCE OF BIOLOGY
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