MDCAT Biology MCQ #119

A plant pathologist identifies an infectious agent that consists only of a short strand of RNA. This agent is most likely a:

MDCAT Biology MCQ #119

  1. Question 1

    Q1. A plant pathologist identifies an infectious agent that consists only of a short strand of RNA. This agent is most likely a:

    • A) Naked circular RNA
    • B) Naked circular DNA
    • C) Enveloped RNA
    • D) Proteinaceous particle

    Answer: Naked circular RNA

    Explanation: Viroids are circular SS-RNA molecules that lack a protein coat. Prions are the opposite, consisting of protein without nucleic acid.