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Human Heredity: Principles and Iss...

11th Edition
Michael Cummings
Publisher: Cengage Learning
ISBN: 9781305251052

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BuyFindarrow_forward

Human Heredity: Principles and Iss...

11th Edition
Michael Cummings
Publisher: Cengage Learning
ISBN: 9781305251052
Chapter 19, Problem 19QP
Textbook Problem
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Measuring Genetic Diversity in Human Populations

The theory of natural selection has been summarized popularly as “survival of the fittest.” Is this an accurate description of natural selection? Why or why not?

Summary Introduction

To determine: Whether the statement “survival of the fittest” is an appropriate description of natural selection or not.

Introduction: The phenomenon of natural selection is based on the evolutionary changes that occur within the population. This evolutionary change helps an organism to adapt better to its surroundings or environment. Natural selection brings about evolutionary adaptation in the organisms.

Explanation of Solution

The statement “survival of the fittest” that is considered in the description of natural selection portrays an image that only those individuals that are physically strong can survive and reproduce. The term fitness creates an image of a physically strong and well built individual whereas the true meaning of the statement is that the organism that undergoes modification in its genome in order to adapt to its surroundings will be capable of surviving and reproducing offsprings...

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Human Heredity: Principles and Issues (MindTap Course List)
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