Genome of which of the following consists of a single molecule of DNA?
Correct answer: B. HBV
- A. HAV
- B. HBV
- C. HCV
- D. HIV
Explanation
The correct answer is HBV. HBV, also known as Hepatitis B Virus, has a single circular double-stranded DNA genome. This genetic makeup sets it apart from the other options, which either have single-stranded RNA genomes (HAV, HCV, HIV) or undergo reverse transcription from RNA to DNA (HIV). Understanding the genetic material of each virus is crucial in identifying the correct answer.
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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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