BIOLOGICAL CLASSIFICATION
VIRUSES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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the materials needed to make new viruses comes from the virus and not the host cell
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the nucleotides of a DNA or RNA virus come from the host cell and not the virus
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most of the machinery for viral replication and gene expression comes from the host cell
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Enzymes necessary for viral replication and gene expression must come from encoded information from the virus
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Detailed explanation-1: -Newly released virions can infect adjacent cells. A lysogenic cycle kills the host cell is not true statement of Viral replication.
Detailed explanation-2: -So, the correct answer is ‘They are obligate intracellular parasites’.
Detailed explanation-3: -Viruses cannot replicate on their own, but rather depend on their host cell’s protein synthesis pathways to reproduce. This typically occurs by the virus inserting its genetic material in host cells, co-opting the proteins to create viral replicates, until the cell bursts from the high volume of new viral particles.
Detailed explanation-4: -Viruses are saprophytic: INCORRECT They cannot even collect or utilize their own energy. They do not have any mode of nutrition as they do not feed.