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EBK BIOLOGY: CONCEPTS AND APPLICATIONS
9th Edition
ISBN: 8220100477805
Author: STARR
Publisher: CENGAGE L
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Chapter 17, Problem 3SQ
Summary Introduction
a.
To determine:
The mode of natural selection that describes “eliminates extreme forms of a trait.”
Summary Introduction
b.
To determine:
The mode of natural selection that describes “eliminates midrange forms of a trait.”
Summary Introduction
c.
To determine:
The mode of natural selection that describes “shifts allele frequency in one direction.”
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Students have asked these similar questions
In the universal ABO blood grouping system, there are four phenotypes—A, B, AB, and O—which are determined by three different alleles. The presence of three alleles in the ABO blood grouping system is an example of ____.
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People who are heterozygous for the cystic fibrosis gene are morelikely than others to survive a cholera epidemic. This heterozygoteadvantage seems to explain why homozygotes are maintained in thehuman population, and is an example ofa. disruptive selection.b. balanced polymorphism.c. high mutation rate.d. nonrandom mating.
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EBK BIOLOGY: CONCEPTS AND APPLICATIONS
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