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Which of the following are incorrect about viruses and viroids?

(1) Viruses contain both nucleic acids (DNA or RNA), while Viroids are a nucleic acid (RNA).

(2) Both Viruses and Viroids can infect all organisms, including plants and animals.

(3) A protein coat is absent in a virus, but present in a viroid

(4) Viruses are larger in size than Viroids

1 Answer

Viruses contain both nucleic acids (DNA or RNA) and a protein coat, while Viroids have no protein coat and are a RNA particle.
Viroids infect only plants, while Viruses can infect all organisms.
answered Jun 12, 2014 by balaji.thirumalai

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