Class 12 Biology Ecology Kingdom - Monera And Viruses



Viroids differ from viruses in having
(a)
DNA molecules with protein coat
(b)
DNA molecules without protein coat
(c)
RNA molecules with protein coat
(d)
RNA molecules without protein coat
Correct answer: (d) 
Solution: Viroids differ from viruses in having RNA molecules without protein coat, Viruses on the other hand posses DNA or RNA with a protein coat, as their genetic material. Viruses can infect a wide range of organisms including plants, animals or bacteria, while viroids infect only plants.

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environmental issues
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