BIOLOGICAL CLASSIFICATION
VIRUSES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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An outer protein coat and nucleic acid within the core.
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An outer carbohydrate coat and nucleic acid within the core.
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A protein tail and carbohydrate tail fibers.
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A carbohydrate tail and protein tail fibers.
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Detailed explanation-1: -Helical Capsid Structure. Each virus possesses a protein capsid to protect its nucleic acid genome from the harsh environment.
Detailed explanation-2: -Describe the general structure of a virus. Nucleic acid (DNA or RNA) surrounded by a protein coat called a capsid.
Detailed explanation-3: -The capsid surrounds the virus and is composed of a finite number of protein subunits known as capsomeres, which usually associate with, or are found close to, the virion nucleic acid.
Detailed explanation-4: -The simplest virions consist of two basic components: nucleic acid (single-or double-stranded RNA or DNA) and a protein coat, the capsid, which functions as a shell to protect the viral genome from nucleases and which during infection attaches the virion to specific receptors exposed on the prospective host cell.
Detailed explanation-5: -Viruses are much smaller than bacteria and consist of a single-or double-stranded nucleic acid (DNA or RNA) surrounded by a protein shell called a capsid; some viruses also have an outer envelope composed of lipids and proteins. They vary in shape. The two main classes are RNA viruses and DNA viruses.