Genetics: From Genes to Genomes
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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Chapter 22, Problem 7P
Summary Introduction

a.

To determine:

The traits that have the greatest and the lowest heritability.

Introduction:

Phenotypic traits are passed on from one generation to the next through genes. Events such as crossing over and mutations are responsible for bringing change in the genes and thus change in the phenotypic characters.

Summary Introduction

b.

To determine:

The relative matching of the given statistics with the estimation of relative heritabilities done in part (a).

Introduction:

The genes present in an organism determines the phenotypic traits of an individual. Along with the genetic factors, environmental factors also play a role to some extent in determining the physical characteristics of an individual.

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Larsen and Buss present four key research designs used in the behavioral genetic study of personality. Briefly review the key features of these designs and discuss the advantages and disadvantages of each design. Why would it be particularly powerful for a set of results (such as heritability and environmental estimates) to be documented using more than one design? Refer to a specific personality trait in formulating your answer to this question
A personality psychologist is interested if being a snob is heritable. To answer this question a personality psychologist recruits a huge sample of 2,593 identical twins and found that identical twins were similar in how snobby they were with an effect size of r=0.6. They also recruit a huge sample of 1845 fraternal twins and found that fraternal twins were also similar in how snobby they were with an effect size of r=0.4. Calculate the heritability coefficient for being a snob.
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Chapter 22 Solutions

Genetics: From Genes to Genomes

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