Which of the Following Represents a Difference Between Viruses and Viroids

question 5

Multiple Choice

Which of the following represents a difference between viruses and viroids?

• A) Viruses infect many types of cells, whereas viroids infect only prokaryotic cells.
• B) Viruses have capsids composed of protein, whereas viroids have no capsids.
• C) Viruses contain introns, whereas viroids have only exons.
• D) Viruses always have genomes composed of DNA, whereas viroids always have genomes composed of RNA.
• E) Viruses cannot pass through plasmodesmata, whereas viroids can.

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