BIOLOGICAL CLASSIFICATION
VIRUSES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Both have a capsid
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Both have a nucleus
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Both are living
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Both contain genetic material (nucleic acids)
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Detailed explanation-1: -Still, viruses have some important features in common with cell-based life. For instance, they have nucleic acid genomes based on the same genetic code that’s used in your cells (and the cells of all living creatures).
Detailed explanation-2: -Viruses have several common characteristics: they are small, have DNA or RNA genomes, and are obligate intracellular parasites. The virus capsid functions to protect the nucleic acid from the environment, and some viruses surround their capsid with a membrane envelope.
Detailed explanation-3: -Viruses have either RNA or DNA as their genetic material but do not contains both. The nucleic acid may be single or double-stranded. So, the correct answer is ‘DNA or RNA but not both’.
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 contain either RNA or DNA as their genetic material. DNA in most organisms is a double-stranded structure, based on Watson and Crick pairing; however, in viruses, DNA and RNA can be either single-stranded or double-stranded.