MDCAT Biology MCQ #25

A patient exhibits rapid cognitive decline and brain vacuolation. The infectious agent lacks nucleic acids. What is the most likely cause?

MDCAT Biology MCQ #25

  1. Question 1

    Q1. A patient exhibits rapid cognitive decline and brain vacuolation. The infectious agent lacks nucleic acids. What is the most likely cause?

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

    Answer: Prions

    Explanation: Prions are purely proteinaceous and cause neurodegenerative diseases; viroids fail because they consist only of naked circular RNA molecules.