Infectious Agents That Contain Only Altered Forms of Protein and No

Question

Infectious agents that contain only altered forms of protein and no nucleic acid are known as:
A) Prions
B) Viruses
C) Bacteria
D) Viroids
E) Protists

Accepted Answer

Prions are infectious agents that only contain abnormal forms of a protein called prion protein (PrP). They do not contain any nucleic acid, such as DNA or RNA.