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Viruses have:

1. DNA enclosed in a protein coat
2. Prokaryotic nucleus
3. Single chromosome
4. Both DNA and RNA

Correct answer: DNA enclosed in a protein coat

Solution

Viruses consist of genetic material surrounded by a protein coat called a capsid. They are not cells, so they do not have a prokaryotic nucleus or a single chromosome in the cellular sense, and they do not contain both DNA and RNA at the same time.

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