出典:Wiktionary
出典:『Wiktionary』 (2026/05/07 04:08 UTC 版)
DNA virus (plural DNA viruses)
出典:Wikipedia
出典:『Wikipedia』 (2011/04/28 13:08 UTC 版)
A DNA virus is a virus that has DNA as its genetic material and replicates using a DNA-dependent DNA polymerase. The nucleic acid is usually double-stranded DNA (dsDNA) but may also be single-stranded DNA (ssDNA). DNA viruses belong to either Group I or Group II of the Baltimore classification system for viruses. Single-stranded DNA is usually expanded to double-stranded in infected cells. Although Group VII viruses such as hepatitis B contain a DNA genome, they are not considered DNA viruses according to the Baltimore classification, but rather reverse transcribing viruses because they replicate through an RNA intermediate.