LIFE: THE SCIENCE OF BIOLOGY
11th Edition
ISBN: 9781319145125
Author: Sadava
Publisher: MAC HIGHER
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Chapter 35, Problem 2Q
Summary Introduction
To analyze:
The data about the mass and number of seeds generated by the barley plants of third generation i.e. presented in the given table and draw out conclusions from the data.
Given:
Three generations of barley were grown in different concentrations of nickel-containing medium. The total seeds from each plant group were harvested and their numbers and masses were examined.
Some of the seeds out of the total harvest were grown in nickel-free conditions to test their germination.
Introduction:
Reproductive success of a plant depends on its seed set. If a plant receives all its nutrients, plant will have a healthy seed set with increased seed size and greater mass.
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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 35 Solutions
LIFE: THE SCIENCE OF BIOLOGY
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