Figure 16.11 The Lytic Cycle: A Strategy for Viral Reproduction (A) In a host cell infected with a virus, the viral genome uses its early genes to shut down host transcription while it replicates itself. Once the viral genome is replicated, its late genes produce capsid proteins that package the genome and other proteins that lyse the host cell. (B) Bacteriophages have attached to this E. coli cell, and the reproductive cycle is underway, producing new phage particles. The cell is viewed in transverse section.