1. 21_03 Lytic and lysogenic cycles Slide number: 1 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. capsid nucleic acid a. Lytic cycle Bacterial cell wall Bacterial chromosome Attachment: Capsid combines with receptor. 1. Penetration: Viral DNA enters host. 2. Integration: Viral DNA passed on when bacteria reproduce. b. Lysogenic cycle prophage Biosynthesis: Viral components are synthesized. 3. Maturation: Assembly of viral components. 4. Release: New viruses leave host cell. 5.

2. 21_03 Lytic and lysogenic cycles Slide number: 2 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. capsid nucleic acid Bacterial cell wall Bacterial chromosome Attachment: Capsid combines with receptor. 1.

3. 21_03 Lytic and lysogenic cycles Slide number: 3 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. capsid nucleic acid Bacterial cell wall Bacterial chromosome Attachment: Capsid combines with receptor. 1. Penetration: Viral DNA enters host. 2.

4. 21_03 Lytic and lysogenic cycles Slide number: 4 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. capsid nucleic acid a. Lytic cycle Bacterial cell wall Bacterial chromosome Attachment: Capsid combines with receptor. 1. Penetration: Viral DNA enters host. 2. Biosynthesis: Viral components are synthesized. 3.

5. 21_03 Lytic and lysogenic cycles Slide number: 5 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. capsid nucleic acid a. Lytic cycle Bacterial cell wall Bacterial chromosome Attachment: Capsid combines with receptor. 1. Penetration: Viral DNA enters host. 2. Biosynthesis: Viral components are synthesized. 3. Maturation: Assembly of viral components. 4.

6. 21_03 Lytic and lysogenic cycles Slide number: 6 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. capsid nucleic acid a. Lytic cycle Bacterial cell wall Bacterial chromosome Attachment: Capsid combines with receptor. 1. Penetration: Viral DNA enters host. 2. Biosynthesis: Viral components are synthesized. 3. Maturation: Assembly of viral components. 4. Release: New viruses leave host cell. 5.

7. 21_03 Lytic and lysogenic cycles Slide number: 7 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. capsid nucleic acid a. Lytic cycle Bacterial cell wall Bacterial chromosome Attachment: Capsid combines with receptor. 1. Penetration: Viral DNA enters host. 2. Integration: Viral DNA passed on when bacteria reproduce. b. Lysogenic cycle Biosynthesis: Viral components are synthesized. 3. Maturation: Assembly of viral components. 4. Release: New viruses leave host cell. 5.

8. 21_03 Lytic and lysogenic cycles Slide number: 8 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. capsid nucleic acid a. Lytic cycle Bacterial cell wall Bacterial chromosome Attachment: Capsid combines with receptor. 1. Penetration: Viral DNA enters host. 2. Integration: Viral DNA passed on when bacteria reproduce. b. Lysogenic cycle prophage Biosynthesis: Viral components are synthesized. 3. Maturation: Assembly of viral components. 4. Release: New viruses leave host cell. 5.

9. 21_03 Lytic and lysogenic cycles Slide number: 9 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. capsid nucleic acid a. Lytic cycle Bacterial cell wall Bacterial chromosome Attachment: Capsid combines with receptor. 1. Penetration: Viral DNA enters host. 2. Integration: Viral DNA passed on when bacteria reproduce. b. Lysogenic cycle prophage Biosynthesis: Viral components are synthesized. 3. Maturation: Assembly of viral components. 4. Release: New viruses leave host cell. 5.