Biology: Concepts and Investigations
5th Edition
ISBN: 9781260259049
Author: Hoefnagels
Publisher: MCG
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Chapter 1, Problem 4WIO
Think of an analogy that will help you remember the differences between populations, communities. and ecosystems.
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You are studying the effect of directional selection on body height in three
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(b) Which population has the highest narrow sense heritability for height?
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(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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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
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You are studying a population of 100 flowers that has two alleles at a locus for
flower color, blue (B) and green (G). There are 15 individuals with the BB
genotype, 70 individuals with the BG genotype, and 15 individuals with the GG
genotype.
(a) What are the allele frequencies of B and G in the starting population? Show
your calculations. (2 pts)
(b) Is this population in Hardy-Weinberg equilibrium? Show your calculations. (3
pts)
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In a natural population of outbreeding plants, the variance of the total number
of seeds per plant is 16. From the natural population, 20 plants are taken into
the laboratory and developed into separate true-breeding lines by self-
fertilization-with selection for high, low, or medium number of seeds-for 10
generations. The average variance in the tenth generation in each of the 20 sets
is about equal and averages 5.8 across all the sets. Estimate the broad-sense
heritability for seed number in this population. (4 pts)
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Chapter 1 Solutions
Biology: Concepts and Investigations
Ch. 1.1 - Does any nonliving object possess all of the...Ch. 1.1 - Prob. 2MCCh. 1.1 - The bacteria in figure 1.8 reproduce asexually,...Ch. 1.2 - What are the goals of taxonomy?Ch. 1.2 - How are domains related to kingdoms?Ch. 1.2 - Prob. 3MCCh. 1.3 - Identify the elements of the experiment summarized...Ch. 1.3 - Prob. 2MCCh. 1.3 - What is the difference between a hypothesis and a...Ch. 1.3 - Prob. 4MC
Ch. 1.3 - Compare and contrast science and technology.Ch. 1.4 - Prob. 1MCCh. 1.4 - How does this story illustrate discovery science?Ch. 1 - Which of the following is smaller than an...Ch. 1 - All of the following are characteristics of life...Ch. 1 - The concentration of salts in blood remains...Ch. 1 - Because plants extract nutrients from soil and use...Ch. 1 - Evolution through natural selection will occur...Ch. 1 - Prob. 6MCQCh. 1 - In an experiment to test the effect of temperature...Ch. 1 - A scientist has just observed a new phenomenon and...Ch. 1 - Prob. 9MCQCh. 1 - Describe each of the five characteristics of life,...Ch. 1 - Imagine two related species of single-celled...Ch. 1 - Prob. 3WIOCh. 1 - Think of an analogy that will help you remember...Ch. 1 - Other than the examples given in the text name an...Ch. 1 - Draw and explain the relationship between...Ch. 1 - Prob. 7WIOCh. 1 - Prob. 8WIOCh. 1 - How are the members of the three domains similar?...Ch. 1 - List each step of the scientific method and...Ch. 1 - Give two examples of questions that you cannot...Ch. 1 - Prob. 1PITCh. 1 - Prob. 2PITCh. 1 - Prob. 3PIT
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