Final answer:
The lytic and lysogenic cycles are types of viral life cycles. Bacteriophages have both lytic and lysogenic cycles. The lysogenic cycle allows viruses to preserve their genome during unfavorable conditions.
Step-by-step explanation:
The lytic cycle is a viral life cycle where the virus takes over the host cell, reproduces new viruses, and destroys the cell. Bacteriophages are viruses that infect bacteria and have both lytic and lysogenic cycles. The lysogenic cycle allows the virus to integrate its DNA into the host genome and preserve its genome during unfavorable conditions.