HIV is classified within which subgroup of retroviruses?
Correct answer: B. Lentiviruses
- A. Oncoviruses
- B. Lentiviruses
- C. Spumaviruses
- D. Adenoviruses
Explanation
Lentiviruses, meaning slow viruses, cause long incubation, persistent infections, which fits HIV's years long course from infection to AIDS. Oncoviruses cause cancers and adenoviruses are DNA viruses, so neither group contains HIV.
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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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