Current Affairs A-Z
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British legacy
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To know more on National Policy for Rare Diseases visit >National Policy for Rare Diseases 2021.
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| Features | Viruses | Viroids |
| Structure | Nucleic acid core (DNA or RNA) surrounded by a protein coat (capsid) | Short, circular RNA molecule (250-400 nucleotides) |
| Living or Non-Living? | Non-living;
lack cellular structures and independent metabolic processes |
Non-living;
lack protein coats and protein-encoding capability |
| Replication | Require host cells for replication, hijack host machinery | Replicate within host cells using cellular enzymes |
| Genetic Material | DNA or RNA | RNA |
| Protein Synthesis | Do not synthesize proteins independently; rely on host cells | Do not encode proteins |
| Pathogenicity | Infect animals, plants, and other organisms | Infect plants and cause plant diseases |
| Examples | Influenza virus, HIV, SARS-CoV-2 | Potato spindle tuber viroid, Coconut cadang-cadang viroid |
To know more about Viruses and Viroids, refer to PMF IAS CA June 5, 2021.


To learn in depth about UAPA, visit >Unlawful Activities (Prevention) Act (UAPA)
