Genome Organization and Replication
By itself, genomic nucleic acid is infectious.
Transcription: Sub-genomic RNA is present in infected cells. The genome expression is based on RNA production which can be analyzed by the dsRNA patterns found in the infected tissues. Usually there are 1-3.5-6 virus specified dsRNA species found in infected cells. Size of largest virus specified dsRNA 4.6-10.9-15 kbp. 2nd largest 1.2-4.712-7 kbp. 3rd largest 0.4-3.037-5 kbp. 4th largest 2.7 kbp. 5th largest 1.6 kbp. 6th largest 1 kbp.
Translation: Virions may provide helper functions to dependent virus during replication. Virion acts as helper for another virus.