Properties or RNA viruses

on 15.9.05 with 0 comments

RNA is labile and transient.

--Most RNA viruses replicate in the cytoplasm. Influenza viruses and retroviruses replicate in the nucleus.

--Cells cannot replicate RNA, all RNA viruses must encode a RNA-dependent RNA polymerase. Retroviruses encode a reverse transcriptase.

--The genome structure determines the mechanism of transcription and replication.

--RNA viruses are prone to mutations because they lack proof-reading machinery.

--The genome structure and polarity determines how viral mRNA is synthesized and how proteins are processed.

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Category: Microbiology Notes



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