EBK LIFE: THE SCIENCE OF BIOLOGY
11th Edition
ISBN: 8220103935432
Author: Sadava
Publisher: MAC HIGHER
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Chapter 50.1, Problem 4R
Summary Introduction
To review:
The reason why food mixtures delivered into stomach by a food tube include proteins, but those delivered into the blood vessels do not.
Introduction:
The total parenteral nutrition (PN) is a method of feeding where a person is fed intravenously, bypassing normal eating and digestion process. A comatose patient is fed with nutrient mixtures via a food tube, which delivers nutrients into the stomach. However, for a patient with a non-functional gastrointestinal system, the nutrient mixture is delivered directly into the blood vessels.
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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 50 Solutions
EBK LIFE: THE SCIENCE OF BIOLOGY
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