Viruses have a simple structure consisting usually of nucleic acid packed into a protein head. They lack the metabolic machinery for isolated mutiplication and must invade a host cell in order to reproduce. This parasitic lifestyle gives rise to some interesting reproductive cycles which we will explore in this chapter.

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Class Notes

[Viral Structure] [Host Range] [General Lifecycle] [Bacteriophage]

[The Lytic Cycle] [The Lysogenic Cycle]

Viral Structure

Host Range

General Lifecycle

Bacteriophages

The Lytic Cycle

The Lysogenic Cycle