MDCAT Biology MCQ #33

A plant pathologist identifies an infectious agent consisting only of a short strand of circular RNA. This agent is classified as a:

MDCAT Biology MCQ #33

  1. Question 1

    Q1. A plant pathologist identifies an infectious agent consisting only of a short strand of circular RNA. This agent is classified as a:

    • A) Prions
    • B) Capsomeres
    • C) Viroids
    • D) Virions

    Answer: Viroids

    Explanation: Viroids are composed only of circular RNA without a protein coat; prions fail because they are composed only of proteins.