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Viruses consist of a small collection of genetic material (DNA or RNA) encased in a protective protein coat called a capsid. (Retroviruses are among the infectious particles that use RNA as their hereditary material.
1 Capsid: a protective shell around the genome of a virus. 2  Cell membrane: the outside layer of a cell that separates it from its environment. 3  Envelope: part of a cell membrane that is stolen to become the outer layer of some viruses.4  Genome: all of the genetic information of an organism (living thing)...5  more.irus. show/hide words to know. 1  Camouflage: use of colors and patterns to blend into the surrounding area in order to hide... 2  more. 3  Capsid: a protective shell around the genome of a virus. 4  Cell membrane: the outside layer of a cell that separates it from its environment.