There are sometimes errors in DNA or deoxyribonucleic acid that takes place during DNA replication or due to any damage by chemicals or radiations. These errors are corrected by proofreading, mismatch repair, and excision repair mechanisms.

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Chapter 14, Problem 9TYK

Summary Introduction

Introduction:

There are sometimes errors in DNA or deoxyribonucleic acid that takes place during DNA replication or due to any damage by chemicals or radiations. These errors are corrected by proofreading, mismatch repair, and excision repair mechanisms.

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How is homologous recombination for DNA repair different from recombination in meiosis? Choose all correct answers. a. HR in DNA repair requires a double-strand break, but meiotic recombination does not. b. HR in DNA repair requires strand invasion, but meiotic recombination does not. c. HR in DNA repair results in identical chromosomes. Meiotic recombination results in changes to the DNA sequence of the "repaired" chromosomes. d. HR in DNA repair uses a newly synthesized identical chromosome as a template. Meiotic recombination uses a homologous chromosome as a template.

In which of the following is genetic material moved betweennonhomologous chromosomes?a. insertion d. translocationb. nondisjunction e. inversionc. deletion

Which types of mutations cause (1 word) a. Increase amount of genetic material in particular chromosome b increase amount of genetic material in all chromosomes c decreased amount of generic material in particular chromsomes d change to position of dna sequence in singular chromosome without changing the amount of genetic material e move dna from one chromosome to non homologous chromosome

Answer 2

Question

Chapter 14, Problem 9TYK

Summary Introduction

Introduction:

There are sometimes errors in DNA or deoxyribonucleic acid that takes place during DNA replication or due to any damage by chemicals or radiations. These errors are corrected by proofreading, mismatch repair, and excision repair mechanisms.

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Answer 3

Question

Chapter 14, Problem 9TYK

Summary Introduction

Introduction:

There are sometimes errors in DNA or deoxyribonucleic acid that takes place during DNA replication or due to any damage by chemicals or radiations. These errors are corrected by proofreading, mismatch repair, and excision repair mechanisms.

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Answer 4

Question

Chapter 14, Problem 9TYK

Summary Introduction

Introduction:

There are sometimes errors in DNA or deoxyribonucleic acid that takes place during DNA replication or due to any damage by chemicals or radiations. These errors are corrected by proofreading, mismatch repair, and excision repair mechanisms.

Expert Solution & Answer

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Answer 5

Chapter 14, Problem 9TYK

Summary Introduction

Introduction:

There are sometimes errors in DNA or deoxyribonucleic acid that takes place during DNA replication or due to any damage by chemicals or radiations. These errors are corrected by proofreading, mismatch repair, and excision repair mechanisms.

Answer 6

Chapter 14, Problem 9TYK

Summary Introduction

Introduction:

There are sometimes errors in DNA or deoxyribonucleic acid that takes place during DNA replication or due to any damage by chemicals or radiations. These errors are corrected by proofreading, mismatch repair, and excision repair mechanisms.

Answer 7

Chapter 14, Problem 9TYK

Summary Introduction

Introduction:

There are sometimes errors in DNA or deoxyribonucleic acid that takes place during DNA replication or due to any damage by chemicals or radiations. These errors are corrected by proofreading, mismatch repair, and excision repair mechanisms.

Answer 8

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Answer 9

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Answer 11

Ch. 14.1 - Prob. 1SB Ch. 14.2 - Prob. 1SB Ch. 14.2 - Prob. 2SB Ch. 14.2 - Prob. 3SB Ch. 14.2 - Prob. 4SB Ch. 14.3 - What is the importance of complementary base...Ch. 14.3 - Why is a primer needed for DNA replication? How is...Ch. 14.3 - DNA polymerase III and DNA polymerase I are used...Ch. 14.3 - Prob. 4SB Ch. 14.4 - Why is a proofreading mechanism important for DNA...

There are sometimes errors in DNA or deoxyribonucleic acid that takes place during DNA replication or due to any damage by chemicals or radiations. These errors are corrected by proofreading, mismatch repair, and excision repair mechanisms.

Solution Summary: The author explains mismatch repair is the ability of some enzymes to sense the insertion of an incorrect nucleotide and to use a DNA polymerase to insert the correct one.

Concept explainers

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Introduction:

There are sometimes errors in DNA or deoxyribonucleic acid that takes place during DNA replication or due to any damage by chemicals or radiations. These errors are corrected by proofreading, mismatch repair, and excision repair mechanisms.

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Chapter 14 Solutions

There are sometimes errors in DNA or deoxyribonucleic acid that takes place during DNA replication or due to any damage by chemicals or radiations. These errors are corrected by proofreading, mismatch repair, and excision repair mechanisms.

Solution Summary: The author explains mismatch repair is the ability of some enzymes to sense the insertion of an incorrect nucleotide and to use a DNA polymerase to insert the correct one.

Concept explainers

Videos

Introduction: There are sometimes errors in DNA or deoxyribonucleic acid that takes place during DNA replication or due to any damage by chemicals or radiations. These errors are corrected by proofreading, mismatch repair, and excision repair mechanisms.

Want to see the full answer?

Chapter 14 Solutions

Introduction:

There are sometimes errors in DNA or deoxyribonucleic acid that takes place during DNA replication or due to any damage by chemicals or radiations. These errors are corrected by proofreading, mismatch repair, and excision repair mechanisms.