Genetics: From Genes to Genomes
6th Edition
ISBN: 9781259700903
Author: Leland Hartwell Dr., Michael L. Goldberg Professor Dr., Janice Fischer, Leroy Hood Dr.
Publisher: McGraw-Hill Education
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Question
Chapter 22, Problem 11P
Summary Introduction
To determine:
Whether the given information tells about the trait that is to be expected to respond most consistently to selection along with the reason for it.
Introduction:
Inheritance of traits is influenced by different extents depending upon the genetic makeover of the organism as well as the environmental conditions around the organism.
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Which type of selection (directional, disruptive, stabilizing) changes the overall average
phenotype in a population? How does it do this?
What does "additive” mean? Why aren't dominant and epistatic variances considered to
be additive?
Which of the following statements about quantitative genetics is TRUE?
Heritability is the measure of the proportion of an individual's phenotype that is due to genetics.
QTL mapping provides an overestimate of the number of genes contributing to a quantitative trait.
A threshold trait is measured in whole numbers.
An H2 value (broad-sense heritability) that approaches 0.0 means that almost all the phenotypic variation is determined by genetic differences.
The h2 (narrow-sense heritability) value is a prediction of the impact that selection may have in altering an initial population by artificial selection.
Genetic covariation isn't always linear. Sometimes one trait has a linear fitness function
while the other has a parabolic function.
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Survival
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length
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Using this image for reference, state whether the fitness for each trait combination is
"low" or "high."
Hint: look at the "lower" graph and look at the height of the blue at each x-y coordinate
a. Max body mass + max wingspan
c. Max body mass + min wingspan
b. Min body mass + min wingspan
d. Min body mass + max wingspan
Cephas/CC BY-SA 4.0
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Chapter 22 Solutions
Genetics: From Genes to Genomes
Ch. 22 - Choose the best matching phrase in the right...Ch. 22 - Suppose you grew genetically identical dandelion...Ch. 22 - How can each of the following be used in...Ch. 22 - Two different groups of scientists studying a rare...Ch. 22 - Which of the following statements would be true of...Ch. 22 - Studies have indicated that for pairs of twins...Ch. 22 - Prob. 7PCh. 22 - Prob. 8PCh. 22 - Table 22.2 lists concordance values for MZ and DZ...Ch. 22 - Prob. 10P
Ch. 22 - Prob. 11PCh. 22 - Two alleles at one locus produce three distinct...Ch. 22 - In a certain plant, leaf size is determined by...Ch. 22 - Compare and contrast the use of SNP genotyping: i...Ch. 22 - Explain the similarities and differences between...Ch. 22 - In Fig. 22.14c, the fw2.2 causal gene was...Ch. 22 - Among the most prevalent pathologies that afflict...Ch. 22 - Human geneticists have found the Finnish...Ch. 22 - Canavan disease, caused by homozygosity for a...Ch. 22 - In GWAS analysis, because of the existence of LD...Ch. 22 - In Fig. 22.15: a. Why do some chromosomes in the...Ch. 22 - Consider the triangle diagram shown in Fig. 22.17....Ch. 22 - Prob. 23PCh. 22 - You conduct a Case/Control study comparing the...Ch. 22 - Prob. 25PCh. 22 - ALS amyotrophic lateral sclerosis is a rare, fatal...Ch. 22 - Through GWAS explorations, scientists have...Ch. 22 - In domesticated dogs, size has a high...Ch. 22 - Suppose a GWAS investigation found a particular LD...Ch. 22 - In 2008, Time magazine named as its invention of...
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