BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
10th Edition
ISBN: 9781305967359
Author: STARR
Publisher: CENGAGE L
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Chapter 10, Problem 11SA
Summary Introduction
Introduction:
In mammals, two X chromosomes (XX) inherits in a female, one inherits from her father and other comes from her mother. Out of these two chromosomes, one is tightly condensed and do not express, these condensed X chromosomes are known as Barr bodies. The inactivation of the X chromosomes ensures that most of the genes on that chromosome are not expressed.
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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?
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(c) If you examined the offspring in the next generation in each population,
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(a)
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Short
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(c)
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(b)
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Tall
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Tall
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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
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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
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(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
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Chapter 10 Solutions
BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
Ch. 10 - Gene expression does not vary by ________. a. cell...Ch. 10 - Binding of _______ to _______ in DNA can increase...Ch. 10 - Prob. 3SACh. 10 - Mechanisms that govern gene expression do not...Ch. 10 - Muscle cells differ from bone cells because they...Ch. 10 - Prob. 6SACh. 10 - Prob. 7SACh. 10 - Prob. 8SACh. 10 - Which of the following includes all of the others?...Ch. 10 - Prob. 10SA
Ch. 10 - Prob. 11SACh. 10 - Prob. 12SACh. 10 - Prob. 13SACh. 10 - True or false? Gene expression patterns can be...Ch. 10 - Match the terms with the most suitable...Ch. 10 - Why are some genes expressed and some not?Ch. 10 - Do the same mechanism of governing gene expression...Ch. 10 - Prob. 3CTCh. 10 - The photos below show flowers from two Arabidopsis...
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