Hepatitis A virus has which type of genome?

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Study for the NBEO Microbiology exam. Prepare with flashcards and multiple choice questions, each with hints and explanations. Get ready for your exam!

Multiple Choice

Hepatitis A virus has which type of genome?

Explanation:
Hepatitis A virus carries a positive-sense, single-stranded RNA genome. This means its genetic material is RNA, not DNA, and it can act directly as mRNA in the host cell to start making viral proteins. HAV belongs to the picornavirus family, which are small, non-enveloped viruses with a linear, single-stranded RNA genome that is not circular. The positive-sense orientation allows immediate translation of a viral polyprotein, which is then processed into functional proteins needed for replication.

Hepatitis A virus carries a positive-sense, single-stranded RNA genome. This means its genetic material is RNA, not DNA, and it can act directly as mRNA in the host cell to start making viral proteins. HAV belongs to the picornavirus family, which are small, non-enveloped viruses with a linear, single-stranded RNA genome that is not circular. The positive-sense orientation allows immediate translation of a viral polyprotein, which is then processed into functional proteins needed for replication.

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