lucleic Acid Type Nucleic Acid Structure Virus Examples Single-Stranded Linear single strand Parvoviruses Circular single strand oX174, M13, fd phage Double-Stranded Linear double strand Herpesviruses(herpes simplex viruses, stein-Barr virus) adenoviruses, T coliphages, lambda ph Linear double strand with single chain breaks T5 coliphage Double strand with cross-linked ends Vaccinia, smallpox QⅢ Closed circular double strand Polyomaviruses(SV-40), papillomaviruses, PM2 phage, cauliflower mosaic RNA Single-Stranded Linear, single stranded, positive strand Picornaviruses (polio, rhinoviruses), togaviruses RNA bacteriophages, TMV, and most plant viruses Linear, single stranded, negative strand Rhabdoviruses(rabies), paramyxoviruses Linear, single stranded, segmented, positive strand Brome mosaic virus (individual segments in separate virions Linear, single stranded, segmented, diploid Retroviruses(Rous sarcoma virus, human two identical single strands), positive strand Immuno deficiency vi Irus Linear, single stranded, segmented, negative strand Paramyxoviruses, orthomyxoviruses (influenza) Double-Stranded Linear, double stranded, segmented Reoviruses, wound- tumor virus of plants, toplasmic polyhedrosis virus of insects, phage 6, many mycoviruses Types of Viral Nucleic AcidsTypes of Viral Nucleic Acids