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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 11, Problem 1QP
Textbook Problem
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Define mutation rate.

Summary Introduction

  To explain: The meaning of the term “mutation rate.”

Introduction: Mutation is the change in the original nucleotide sequence of the DNA. During mutation, the nucleotide can be added, deleted or transformed. The change in the structure of the chromosome also leads to mutation. It can be heritable or non-heritable. If a mutation occurs in somatic cells, it is non-heritable whereas a mutation in germ cells is heritable and can affect generations. Mutation leads to different types of cancer.

Explanation of Solution

Mutation rate is the ‘number of mutated alleles per gene in a particular generation.’ Every gene has a different mutation rate. Some genes are more prone to mutation than others. It is affected by the size of the gene, nucleotide sequence of the gene and environmental impact on the gene. Mutation rate is measured by two methods, which are given below:

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