DNA viruses are the viruses with DNA as genome. There are many medically important DNA viruses. DNA viruses cause many diseases and it is really essential for a medical student to learn about them.
Medically important DNA virus families are listed below:
1. Parvoviruses
2. Papillomaviruses
3. Polyomaviruses
4. Adenoviruses
5. Herpesviruses
6. Hepadnaviruses
7. Poxviruses
To remember these viruses we can use the Mnemonic: Pardon PaPa As He Has Pox DNA.
Where,
Pardon: Parvoviruses
Pa: Papillomaviruses
Pa: Polyomaviruses
As: Adenoviruses
He: Herpesviruses
Has: Hepadnaviruses
Pox: Poxviruses
DNA: DNA virus family.
Genereal rule for DNA viruses:
1. Most of the DNA viruses are double stranded, except Parvovirus.
2. All the DNA viruses have linear genome except Papillpmaviruses, Polymomaviruses and Hepadnaviruses (@ PaPaHD).
3. All DNA viruses replicate in the nucleus except poxviruses.
4. All the DNA viruses are icosahedral except poxviruses which have complex capsid.
To learn more about DNA viruses you can check this video:
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