Evolution, Fourth Edition (looseleaf)
4th Edition
ISBN: 9781605356969
Author: Douglas J. Futuyma
Publisher: Sinauer Associates, Inc.
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Chapter 19, Problem 7PDT
Summary Introduction
To determine: The ways to test hypotheses that different factors may be responsible for the decline or extinction of a group.
Introduction: The diversification rate of different species increase when members of that species come in contact with a new geography. For insects to evolve, adaptation is the key feature that can enable them to survive in their new niche.
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*Example 2: Tracing the path of an autosomal dominant trait
Trait: Neurofibromatosis
Forms of the trait:
The dominant form is neurofibromatosis, caused by the production of an abnormal form of the protein
neurofibromin. Affected individuals show spots of abnormal skin pigmentation and non-cancerous
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cancerous form. i
The recessive form is a normal protein - in other words, no neurofibromatosis.moovi
A typical pedigree for a family that carries neurofibromatosis is shown below. Note that carriers are not
indicated with half-colored shapes in this chart. Use the letter "N" to indicate the dominant neurofibromatosis
allele, and the letter "n" for the normal allele.
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Chapter 19 Solutions
Evolution, Fourth Edition (looseleaf)
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