Multiple choice

Which of the following statements is true for viruses?

  1. They are obligate intracellular parasites.

  2. They divide by binary fission.

  3. They have their own metabolism.

  4. They contain enzymes for the formation of 16S rRNA.
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A Correct answer
Explanation

Viruses are obligate intracellular parasites - they cannot replicate outside host cells and lack independent metabolic machinery. They don't divide by binary fission (that's bacterial), don't have their own metabolism (depend entirely on host), and don't contain rRNA formation enzymes (they use host machinery).

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