(MCQ from UHS MDCAT 2024)
Q. The complete, mature & infectious particle of virus is known as:
- A. Genome
- B. Capsomere
- C. Capsid
- D. Virion
Correct Answer: D. Virion
Explanation:
- A virion is the complete, mature, and infectious form of a virus outside the host cell. It consists of:
- Genetic material (DNA or RNA)
- Capsid (protein coat)
- And in some viruses, an envelope
- Each component plays a role in protecting the viral genome and helping it infect new cells.
- Genome → The genetic material only (DNA or RNA)
- Capsomere → Individual protein subunits that make up the capsid
- Capsid → Protein shell that encloses the genome, but not infectious on its own
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