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Which of the following would be the best general description of a “virus”?ANSWERViruses are cells without a nucleus or other membrane-bound organelles.Viruses are cells with a nucleus and membrane-bound organelles.Viruses are acellular infectious agents with DNA genomes.Viruses are acellular infectious agents.

Question

Which of the following would be the best general description of a “virus”?ANSWERViruses are cells without a nucleus or other membrane-bound organelles.Viruses are cells with a nucleus and membrane-bound organelles.Viruses are acellular infectious agents with DNA genomes.Viruses are acellular infectious agents.

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Solution

The best general description of a “virus” would be: Viruses are acellular infectious agents.

Here's why:

  1. Viruses are not cells: Unlike cells, viruses do not have a cellular structure. They do not have a nucleus, cytoplasm, or cellular organelles. They are much smaller than cells and require a host cell to reproduce.

  2. Viruses are acellular: This means they are not composed of cells. Instead, they are particles that consist of genetic material (either DNA or RNA) surrounded by a protein coat.

  3. Viruses are infectious agents: They are capable of causing disease in their host. They do this by invading host cells and using the host's cellular machinery to reproduce, often damaging or killing the host cells in the process.

  4. Some viruses have DNA genomes, others have RNA: While some viruses do have DNA genomes, others have RNA genomes. Therefore, saying that all viruses have DNA genomes would be incorrect.

So, the most accurate general description from the options provided would be that viruses are acellular infectious agents.

This problem has been solved

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