MDCAT Biology MCQ #64

In the study of unconventional pathogens like those causing Mad Cow Disease, researchers found the infectious agent lacks nucleic acids and consists of:

MDCAT Biology MCQ #64

  1. Question 1

    Q1. In the study of unconventional pathogens like those causing Mad Cow Disease, researchers found the infectious agent lacks nucleic acids and consists of:

    • A) Proteins only
    • B) RNA only
    • C) DNA only
    • D) Protein and RNA

    Answer: Proteins only

    Explanation: Prions are purely proteinaceous infectious particles. Viroids consist only of circular RNA and are the most tempting wrong option for sub-viral agents.