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What are the differences between DNA viruses and RNA viruses?
Posted January 26, 2023

Answer

Basis of differentiation 

DNA viruses

RNA viruses

Definition 
Are viruses whose genetic information is stored in the form of DNA
Are viruses whose genetic information is stored in the form of RNA
Genome 
Genetic material consists of deoxyribonucleic acid (DNA) 
Genetic material consists of ribonucleic acid (RNA)
Double-stranded/Single-stranded DNA/ RNA
  • Two types: double-stranded DNA and single-stranded DNA viruses 
  • Double stranded DNA viruses are more common 
  • Two types: double-stranded RNA and single-stranded RNA
  • Single-stranded RNA viruses are more common 
Size of genome
Comparatively larger genome size
Comparatively smaller genome size
Mutation rate
Lower mutation rate
Higher mutation rate
Stability
More stable because of the lower mutation rate  
Unstable because of the higher mutation rate.
Assembly
Usually assembled in the nucleus
Assembled in the cytoplasm
Replication 
Replicated inside the host cell’s nucleus
First transcribed and then replicated in the cytoplasm
Accuracy of replication 
Shows accurate replication
Showserror-prone replication
Procapsid 
The procapsid contains the newly-synthesized viral DNA 
Procapsid is not formed 
Protein Synthesis
Viral DNA is first transcribed into RNA, and mRNA is then translated into viral proteins
RNA viruses already contain RNA in the genome and can hence bypass transcription during protein synthesis
Baltimore classification types 
Included in groups Ⅰ, Ⅱ, and Ⅶ of the Baltimore classification
Included in groups Ⅲ, Ⅳ, Ⅴ, and Ⅵ of the Baltimore classification
Examples 
Herpesviruses, Adenoviruses, Poxviruses, Hepadnaviruses, and Papillomaviruses 
Retroviruses, Reoviruses, Picornaviruses, Togaviruses, and Orthomyxoviruses
Diseases caused
Chickenpox, herpes, and smallpox
Influenza, the common cold, Aids, polio, Ebola hemorrhagic fever, SARS, measles, and West Nile fever