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Multiple Choice
Which of these infectious agents do not contain nucleic acid?
A
Prions
B
Fungi
C
Bacteria
D
Viruses
Verified step by step guidance
1
Understand the nature of each infectious agent listed: Prions, Fungi, Bacteria, and Viruses.
Recall that nucleic acids, such as DNA or RNA, are essential for the genetic material of most living organisms and viruses.
Consider the structure of prions: Prions are infectious proteins that do not contain nucleic acids. They are misfolded proteins that can induce other proteins to misfold.
Review the characteristics of fungi, bacteria, and viruses: Fungi and bacteria are cellular organisms with DNA, while viruses contain either DNA or RNA as their genetic material.
Conclude that prions are the only infectious agents in the list that do not contain nucleic acids, as they are composed solely of protein.