what does the following terms mean ?

chaperion ,  interferon ,  virion , prion   

Interferons (IFNs) are proteins made and released by host cells in response to the presence ofpathogens—such as virusesbacteria, or parasites—or tumor cells. They allow communication between cells to trigger the protective defenses of the immune system that eradicate pathogens or tumors.

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 Chaperone (protein), a protein that assists the non-covalent folding/unfolding in molecular biology

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 Virion - A complete viral particle, consisting of RNA or DNA surrounded by a protein shell and constituting the infective form of a virus.

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 Prion - A microscopic protein particle similar to a virus but lacking nucleic acid, thought to be the infectious agent responsible for scrapie and certain other degenerative diseases of the nervous system.

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@Kartika: You may refer to the answer provided by your friend.

@Deps: Very good! Your answers are of immense value to your fellow students. Keep posting.

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