First step of viral replication is:
Correct answer: D. Adsorption or Attachment
- A. Entry
- B. Assembly
- C. Uncoating
- D. Adsorption or Attachment
Explanation
Viral infections follow similar steps in the virus replication cycle: attachment or adsorption, penetration, uncoating, replication, assembly, and release.
This question appeared on the NUMS 2017 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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