![]() This viral DNA is then transcribed and translated by the host machinery, directing the formation of new virions. Reverse transcriptase, a viral enzyme that comes from the virus itself, converts the viral RNA into a complementary strand of DNA, which is copied to produce a double stranded molecule of viral DNA. Retroviruses use DNA intermediates to replicate.Some RNA viruses carry enzymes which allow their RNA genome to act as a template for the host cell to a form viral mRNA. ![]() The viral RNA is translated directly into new viral proteins after infection by the virus.
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