The phenomenon of the reduced mutation rate of mitochondrial DNA over generations. Introduction: Mitochondria are inherited through the cytoplasm of mother in most organisms. Mitochondria carry their own DNA (deoxyribonucleic acid) and information about the genetic expression.

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Chapter 9, Problem 4NST

Summary Introduction

To explain: The phenomenon of the reduced mutation rate of mitochondrial DNA over generations.

Introduction: Mitochondria are inherited through the cytoplasm of mother in most organisms. Mitochondria carry their own DNA (deoxyribonucleic acid) and information about the genetic expression.

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All mutations in mitochondrial genes ultimately affect (whether directly or indirectly) the key function of mitochondria, which is to make ATP. Why then do mutations in different genes cause different diseases, with specific symptoms?

Some living organisms are under considerable pressure tostreamline their genomes for the sake of more efficientoperation. As a result, the mitochondria of eukaryotic species have lost, to one degree or another, the overwhelmingmajority of their genes. During this process, several hundred mitochondrial genes were transferred to the nucleargenome. Yet mitochondria still retain a genome with thecapacity to produce several electron transport proteins.Review mitochondrial electron transport and suggest areason why these energy-generating organelles retained thegenes to produce this set of molecules.

A mitochondrial transfer technique may offer a potential solution for women with mtDNA-based diseases to have healthy children.This technique works by replacing the damaged mitochondria in the mother’s egg with healthy mitochondria from another woman’s donor egg. Based on what you know about the importance of nuclear gene products to mitochondrial functions, will this technique ensure that children will not inherit or develop a mtDNA-based diseases?

Answer 2

Question

Chapter 9, Problem 4NST

Summary Introduction

To explain: The phenomenon of the reduced mutation rate of mitochondrial DNA over generations.

Introduction: Mitochondria are inherited through the cytoplasm of mother in most organisms. Mitochondria carry their own DNA (deoxyribonucleic acid) and information about the genetic expression.

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Answer 3

Question

Chapter 9, Problem 4NST

Summary Introduction

To explain: The phenomenon of the reduced mutation rate of mitochondrial DNA over generations.

Introduction: Mitochondria are inherited through the cytoplasm of mother in most organisms. Mitochondria carry their own DNA (deoxyribonucleic acid) and information about the genetic expression.

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Answer 4

Question

Chapter 9, Problem 4NST

Summary Introduction

To explain: The phenomenon of the reduced mutation rate of mitochondrial DNA over generations.

Introduction: Mitochondria are inherited through the cytoplasm of mother in most organisms. Mitochondria carry their own DNA (deoxyribonucleic acid) and information about the genetic expression.

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Answer 5

Chapter 9, Problem 4NST

Summary Introduction

To explain: The phenomenon of the reduced mutation rate of mitochondrial DNA over generations.

Introduction: Mitochondria are inherited through the cytoplasm of mother in most organisms. Mitochondria carry their own DNA (deoxyribonucleic acid) and information about the genetic expression.

Answer 6

Chapter 9, Problem 4NST

Summary Introduction

To explain: The phenomenon of the reduced mutation rate of mitochondrial DNA over generations.

Introduction: Mitochondria are inherited through the cytoplasm of mother in most organisms. Mitochondria carry their own DNA (deoxyribonucleic acid) and information about the genetic expression.

Answer 7

Chapter 9, Problem 4NST

Summary Introduction

To explain: The phenomenon of the reduced mutation rate of mitochondrial DNA over generations.

Introduction: Mitochondria are inherited through the cytoplasm of mother in most organisms. Mitochondria carry their own DNA (deoxyribonucleic acid) and information about the genetic expression.

Answer 8

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The phenomenon of the reduced mutation rate of mitochondrial DNA over generations. Introduction: Mitochondria are inherited through the cytoplasm of mother in most organisms. Mitochondria carry their own DNA (deoxyribonucleic acid) and information about the genetic expression.

Solution Summary: The author explains the phenomenon of the reduced mutation rate of mitochondrial DNA over generations.

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To explain: The phenomenon of the reduced mutation rate of mitochondrial DNA over generations.

Introduction: Mitochondria are inherited through the cytoplasm of mother in most organisms. Mitochondria carry their own DNA (deoxyribonucleic acid) and information about the genetic expression.

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Chapter 9 Solutions

The phenomenon of the reduced mutation rate of mitochondrial DNA over generations. Introduction: Mitochondria are inherited through the cytoplasm of mother in most organisms. Mitochondria carry their own DNA (deoxyribonucleic acid) and information about the genetic expression.

Solution Summary: The author explains the phenomenon of the reduced mutation rate of mitochondrial DNA over generations.

Concept explainers

Videos

To explain: The phenomenon of the reduced mutation rate of mitochondrial DNA over generations. Introduction: Mitochondria are inherited through the cytoplasm of mother in most organisms. Mitochondria carry their own DNA (deoxyribonucleic acid) and information about the genetic expression.

Want to see the full answer?

Chapter 9 Solutions

To explain: The phenomenon of the reduced mutation rate of mitochondrial DNA over generations.

Introduction: Mitochondria are inherited through the cytoplasm of mother in most organisms. Mitochondria carry their own DNA (deoxyribonucleic acid) and information about the genetic expression.