How many main components make up a virus?

Biology Mcqs for PPSC, FPSC, NTS, and Pakistan government job tests. Select an option below, then read the explanation.

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Subject
Biology Mcqsbiology-mcqs
Published
24 Apr 2018
Last updated
28 May 2026

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Explanation

A virus is primarily composed of two essential parts: the nucleoid (genetic material) and the protein coat called the capsid. Some viruses also have an outer envelope, and occasionally contain enzymes, but these are not present in all viruses.

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