Viroids differ from viruses in having:
Correct answer: C. RNA molecules without a protein coat.
- A. DNA molecules without a protein coat.
- B. RNA molecules with a protein coat.
- C. RNA molecules without a protein coat.
- D. DNA molecules with a protein coat.
Explanation
RNA molecules without a protein coat: This is the correct description of viroids. Viroids are small, circular RNA molecules that lack a protein coat. They are unique infectious agents that can cause disease in plants.
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About Biodiversity and Variety of Life
Biological classification uses taxonomic ranks, binomial nomenclature and shared characteristics to organize life into kingdoms. The major groups include prokaryotes, protists, fungi, plants and animals, with comparisons based on cell type, cell wall, nutrition, body organization, reproduction and evolutionary relationships; prokaryotes lack a membrane-bound nucleus.
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