Characteristics of Viruses from Mi....

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Characteristics of Viruses

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smaller in size that bacteria (20-100nm in size)

require living cells in order to replicate

use host cell "machinery" to make viral proteins and nucleic acids

nucleic acid genome is composed of either RNA or DNA

size of genome varies from 3,000 to 250,000 nucleotides

viral coat may be a non-enveloped protein coat or may be covered by a lipid-containing envelope

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