Table of contents

1. Introduction to Microbiology3h 22m
2. Disproving Spontaneous Generation1h 18m
3. Chemical Principles of Microbiology3h 38m
4. Water1h 28m
5. Molecules of Microbiology2h 23m
6. Cell Membrane & Transport3h 28m
7. Prokaryotic Cell Structures & Functions5h 52m
8. Eukaryotic Cell Structures & Functions2h 18m
9. Microscopes2h 46m
10. Dynamics of Microbial Growth4h 36m
11. Controlling Microbial Growth4h 10m
12. Microbial Metabolism5h 16m
13. Photosynthesis2h 31m
14. DNA Replication2h 25m
15. Central Dogma & Gene Regulation7h 14m
16. Microbial Genetics4h 44m
17. Biotechnology3h 0m
18. Viruses, Viroids, & Prions4h 56m
19. Innate Immunity7h 15m
20. Adaptive Immunity7h 14m
21. Principles of Disease6h 57m

18. Viruses, Viroids, & Prions

Bacteriophage: Filamentous Phage Infections

Microbiology

18. Viruses, Viroids, & Prions

Bacteriophage: Filamentous Phage Infections

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Multiple Choice

Filamentous phages are unique in their ability to do what?

To build and release new phages without killing the host cell.

To cause the host cell to replicate and synthesize new viral DNA and viral proteins.

To cause the host cell to lyse or burst open releasing new, infectious phages.

To perform the lysogenic and lytic cycles within the host cell at the same time.

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Verified step by step guidance

Understand the nature of filamentous phages: Filamentous phages are a type of bacteriophage that infect bacteria, particularly gram-negative bacteria. They are known for their long, thread-like structure.

Identify the replication process of filamentous phages: Unlike lytic phages, filamentous phages do not cause the host cell to lyse. Instead, they replicate their DNA and assemble new phage particles within the host cell.

Recognize the release mechanism: Filamentous phages are unique because they can extrude new phage particles through the host cell membrane without killing the host cell. This process allows the host cell to continue living and producing more phages.

Differentiate from lytic cycle: In contrast to the lytic cycle, where the host cell bursts open to release new phages, filamentous phages maintain the integrity of the host cell, allowing for continuous production of phages.

Clarify the absence of lysogenic cycle: Filamentous phages do not integrate their DNA into the host genome as seen in the lysogenic cycle. They continuously replicate and release new phages without entering a dormant state.