A defective virus that needs the unrelated help of virus to infect the same host cell in order to provide essential functions is:
Correct answer: A. Satellite virus
- A. Satellite virus
- B. HAV
- C. HCV
- D. HIV
Explanation
Option A is correct as a "satellite virus" is a subviral agent that depends on the co-infection of a host cell with a helper virus for its replication.
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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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