Chapter 20 DNA Replication and Repair. Replication is bidirectional.

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Chapter 20 DNA Replication and Repair

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Transcript of Chapter 20 DNA Replication and Repair. Replication is bidirectional.

Page 1: Chapter 20 DNA Replication and Repair. Replication is bidirectional.

Chapter 20

DNA Replication and Repair

Page 2: Chapter 20 DNA Replication and Repair. Replication is bidirectional.
Page 3: Chapter 20 DNA Replication and Repair. Replication is bidirectional.
Page 4: Chapter 20 DNA Replication and Repair. Replication is bidirectional.

Replication is bidirectional

Page 5: Chapter 20 DNA Replication and Repair. Replication is bidirectional.
Page 6: Chapter 20 DNA Replication and Repair. Replication is bidirectional.
Page 7: Chapter 20 DNA Replication and Repair. Replication is bidirectional.

DNA Replication is Semidiscontinuous

Page 8: Chapter 20 DNA Replication and Repair. Replication is bidirectional.

Okazaki Fragments

Page 9: Chapter 20 DNA Replication and Repair. Replication is bidirectional.

DNA Polymerase III is a Multisubunit Enzyme

Page 10: Chapter 20 DNA Replication and Repair. Replication is bidirectional.

DNA Polymerase III Subunit Organization

Page 11: Chapter 20 DNA Replication and Repair. Replication is bidirectional.

DNA Replication

is a Processive Process.

Page 12: Chapter 20 DNA Replication and Repair. Replication is bidirectional.

Stages of DNA Replication

• Initiation•Elongation •Termination

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Page 15: Chapter 20 DNA Replication and Repair. Replication is bidirectional.
Page 16: Chapter 20 DNA Replication and Repair. Replication is bidirectional.
Page 17: Chapter 20 DNA Replication and Repair. Replication is bidirectional.

PCNA analogous to E. coli b-subunit of E. coli DNA

polymerase

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Repair of UV Induced Thymine

Dimers

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General excision-repair

pathway

Page 20: Chapter 20 DNA Replication and Repair. Replication is bidirectional.

Repair of damage resulting from the

deamination of cytosine


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