Oncogenic Viruses Oncogenic DNA Viruses Oncogenic RNA viruses 。Adenoviridae 。Retroviridae ·Heresviridae 。Viral RNA is 。Poxviridae transcribed to DNA which can integrate 。Papovaviridae into host DNA 。Hepadnaviridae ·HTLV1 。HTLV2• Oncogenic DNA Viruses • Adenoviridae • Heresviridae • Poxviridae • Papovaviridae • Hepadnaviridae Oncogenic Viruses • Oncogenic RNA viruses • Retroviridae • Viral RNA is transcribed to DNA which can integrate into host DNA • HTLV 1 • HTLV 2