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Did you know?
Absolute zero (−273.15°C) is the coldest possible temperature — at which atoms nearly stop moving.
Did you know?
Absolute zero (−273.15°C) is the coldest possible temperature — at which atoms nearly stop moving.
Viroids differ from viruses in having
DNA molecules without protein coat.
RNA molecules with protein coat.
RNA molecules without protein coat.
DNA molecules with protein coat.
To solve this problem, we need to understand the fundamental differences between viroids and viruses.Viroids and viruses are both infectious agents, but they differ in their structure and composition.Let's analyze the options:• Option 1: DNA molecules without protein coat.• Option 2: RNA molecules with protein coat.• Option 3: RNA molecules without protein coat.• Option 4: DNA molecules with protein coat.Explanation:• Viroids are the smallest infectious pathogens known, consisting solely of a short strand of circular, single-stranded RNA.• They do not have a protein coat, which is a key characteristic that differentiates them from viruses.• Viruses, on the other hand, are composed of either DNA or RNA and are surrounded by a protein coat called a capsid.• Therefore, viroids are RNA molecules without a protein coat.Analyzing the options, Option 3 correctly describes viroids as RNA molecules without a protein coat.Therefore, the correct option is Option 3.
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