A particle can infect humans and make them sick. It attaches to a host cell and injects its RNA, which the host uses to make proteins for the particle. This particle cannot reproduce on its own and can only copy itself by using the machinery of the host.

Which explains whether the particle described is a virus or a cell?

A. The particle is a virus because it does not use energy and cannot reproduce by itself.
B. The particle is a virus because it has genetic information and can infect humans.
C. The particle is a cell because it has genetic information and attaches to other cells.
D. The particle is a cell because it does not make proteins and cannot reproduce by itself.

The statement 'The particle is a virus because it has genetic information and can infect humans' BEST describes a virus (Option B).

Viruses can be considered parasites because they cannot reproduce by themselves.

Viruses have their own genetic material (either DNA or RNA), which is replicated by using the host molecular machinery (e.g., the host DNA/RNA polymerases can be used by viruses in order to synthesize new viral DNA strands).

Viruses aren't cells because they do not contain cell membranes and, therefore, they can't keep themselves in a relatively stable state.

In conclusion, the statement 'The particle is a virus because it has genetic information and can infect humans' BEST describes a virus (Option B).

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