__________ is a repeated protein unit that makes the viral protein coat.
Correct answer: B. Capsomere
- A. Nucleic acid
- B. Capsomere
- C. Core
- D. Envelop
Explanation
The protein coat of a virus, the capsid, is built from many identical repeating subunits called capsomeres. The nucleic acid forms the core inside the capsid, and the envelope is an extra lipid membrane outside the capsid that some viruses take from the host cell.
This question appeared on the UHS MDCAT 2026 paper, which you can sit online with every answer explained.
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About Viruses
Viruses are acellular infectious particles made of genetic material enclosed by a protein capsid, sometimes with a lipid envelope. Their replication depends on a host cell and may follow lytic or lysogenic cycles, so viral structure and reproduction differ fundamentally from those of cellular organisms such as bacteria.
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