Smallest disease causing agents in plants are ?
Correct answer: C. viroids
- A. virion
- B. mycoplasma
- C. viroids
- D. prions
Explanation
Viroids are the smallest known infectious agents of plants and consist only of short, circular strands of RNA without a protein coat. Virions may be selected because they are complete virus particles, but they are larger and contain a nucleic acid genome enclosed in a capsid.
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About Viruses
Viruses are acellular infectious particles made of genetic material enclosed by a protein capsid, sometimes with a lipid envelope. Their replication depends on a host cell and may follow lytic or lysogenic cycles, so viral structure and reproduction differ fundamentally from those of cellular organisms such as bacteria.
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