What Is Life? A Guide to Biology with Physiology & LaunchPad for What is Life? A Guide to Biology with Physiology (Twelve Month Access)
4th Edition
ISBN: 9781319201821
Author: Jay Phelan
Publisher: W. H. Freeman
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Chapter 25, Problem 1SA
Summary Introduction
To review:
The effects of the hormone oxytocin.
Introduction:
Oxytocin is a hormone and a neurotransmitter released by the brain.
Expert Solution & Answer
Explanation of Solution
The name Oxytocin for the hormone comes from a Greek word meaning "quick birth", due to its role in child birth.
Oxytocin is produced in the brain, and has been found to have a number of effects on the body.
It is responsible for stimulating uterine contractions during childbirth, and stimulating milk production in women nursing their babies. It also induces a tendency to trust and bond with other individuals.
Conclusion
Oxytocin is a hormone produced in the brain, and its major effects are – inducing the tendency to trust other individuals and increase social bonding, stimulating uterine contractions during childbirth, and making milk available for nursing babies.
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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)
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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 25 Solutions
What Is Life? A Guide to Biology with Physiology & LaunchPad for What is Life? A Guide to Biology with Physiology (Twelve Month Access)
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