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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 19QP
Textbook Problem
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Our bodies are not defenseless against mutagens that alter our genomic DNA sequences. What mechanisms are used to repair DNA?

Summary Introduction

To determine: The mechanisms that are used by the human body to protect the cells against mutagens and to correct repair DNA.

Introduction: Mutation is the change in the original nucleotide sequence of the DNA. During mutation, the nucleotide can be added, deleted or transformed. Change in the structure of the chromosome also leads to mutation. It can be heritable or non-heritable.

Explanation of Solution

Cells use DNA polymerase to protect the body against mutagens which can alter genomic DNA sequences. DNA polymerase enzyme has proofreading activity that repairs error which occurred in the genomic sequence at the time of DNA replication...

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