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Viruses have:

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

Solution & Step-by-step Explanation

A virus consists of a core of genetic material (either DNA or RNA, but never both) surrounded by a protective protein coat called a capsid. They do not have a cellular structure or a nucleus.

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Viruses have:
A
DNA enclosed in a protein coat.
B
Prokaryotic nucleus.
C
Single chromosome.
D
Both DNA and RNA.

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