what are the chemical composition of a virus and structures that make up a naked and an enveloped viron. Discuss the basic shapes of virions and include: symmetrical, asymmetrical and tailed. How do viroids and prions differ from virions? Include in your answer the major diseases associated with prions and viroids and their economic impact to our food supply.
what are the chemical composition of a virus and structures that make up a naked and an enveloped viron. Discuss the basic shapes of virions and include: symmetrical, asymmetrical and tailed. How do viroids and prions differ from virions? Include in your answer the major diseases associated with prions and viroids and their economic impact to our food supply.
Viruses are the sub-microscopic organisms, also known as the boundary line between living and non-living organisms because of their intermediate properties lying between the living and non-living organisms. The viruses additionally covered by a lipid coat are often known as virions.
Viruses contain a nucleic acid genome and a protein capsid that covers the genome, and this complete entity is known as the nucleocapsid. The animal virus sometimes also contains an additional lipid envelope in its structure. The whole virus is called a virion. Symmetrical or isometric viruses are the category of viruses that are spherical in shape such as poliovirus. Some viruses such as T4 bacteriophage have a complex and asymmetric structure. The other type of viruses includes tailed or filamentous virus which is very long and cylindrical in shape having a tail like Tobacco Mosaic Virus. Viroids are the single-celled RNA that is naked and very small in size responsible for causing infection in plants. Virusoids are the organisms which require a helper organism to cause the infection in any organism. Prions are protein-containing infectious organisms that are responsible for transmitting encephalopathies.
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