CRCST Practice Exam

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What is a virus-like protein containing element that lacks DNA and RNA?

Prions
Bacteria
Fungi
Protozoa

The correct answer is: Prions

Prions are unique infectious agents that consist solely of protein and lack DNA or RNA. Unlike bacteria, fungi, and protozoa, prions are not considered living organisms and do not contain genetic material. Prions are known for causing a variety of neurodegenerative diseases in humans and animals.