Question :
Which one of the following features is absent in a virus?
Option 1:
Reproduce within the host cell
Option 2:
Presence of cell wall
Option 3: Fully parasitic
Option 4: Presence of either DNA or RNA
Correct Answer:
Presence of cell wall
Solution : The correct option is the presence of the cell wall.
Viruses are distinct from bacteria and some other microorganisms in that they do not possess a cell wall. Instead, they consist of genetic material (either DNA or RNA) enclosed within a protein coat called a capsid. Unlike cells, viruses do not possess cellular components or the capability for independent metabolic functions. They are categorised as obligate intracellular parasites since they rely on a host cell to reproduce and fulfil their life cycle.
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