Which one is not a living characteristic of the virus?

Explanation

Viruses exhibit certain living characteristics such as mutation, replication, and the presence of a genome, but not crystallization. Their ability to mutate allows them to evolve and adapt to changing environments, while replication, though dependent on a host cell, shows their capacity to reproduce like living organisms. The presence of genetic material (DNA or RNA) further emphasizes their biological nature, as it stores and transfers hereditary information. In contrast, crystallization is a physical property that occurs when viruses are isolated and purified, reflecting their non-living aspect rather than a life process. Thus, mutation, replication, and genome represent the living characteristics of viruses, whereas crystallization highlights their non-living nature.