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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.
list and describe the structural components of viruses. - capsid built from capsomeres encloses the viral genome-some viruses have accessory structures to help them infect their hosts-membranous envelope surrounds the capsids of flu viruses-elongated icosahedral capsid heads and protein tail pieces are on t-even phages.xplain how viral infections may cause disease. - some viruses damage or kill cells by triggering the release of hydrolytic enzymes from lysosomes-some viruses cause the infected cell to produce toxins that lead to disease symptoms-other viruses have molecular components, such as envelope proteins, that are toxic.