Final answer:
The fifth step of non-enveloped DNA animal virus life cycle is the release of new virions through cell lysis or apoptosis, after which they can infect new host cells, continuing the replication cycle.
Step-by-step explanation:
Step Five of Non-enveloped DNA Animal Virus Life Cycle: Release
The fifth step in the life cycle of non-enveloped DNA animal viruses involves the release of new virions from the host cell. After the assembly of viral components into complete viruses—known as virions—the new viral progeny, such as rhinoviruses, are released into the host organism. This release occurs through a process called lysis or apoptosis. In the case of lysis, the host cell's membrane is ruptured, whereas apoptosis involves a programmed cell death mechanism. Both processes result in the release of all virions at once, enabling them to infect adjacent cells and repeat the replication cycle.
Viral replication can greatly alter the infected cell, and while some cells may continue to live for a period after virus assembly, they can no longer function normally. The replication cycle then starts anew when these newly released virions attach to and penetrate new host cells.