An infectious protein is a
A) prion.
B) papovavirus.
C) retrovirus.
D) bacteriophage.
E) viroid.

Question

Quizplus · Accepted Answer

Prions are infectious proteins that can cause diseases such as Creutzfeldt-Jakob disease (CJD) and mad cow disease. They do not contain genetic material like viruses or bacteriophages, and are not single-stranded RNA like viroids. Papovaviruses and retroviruses are both types of viruses, but do not fit the definition of an infectious protein.

An Infectious Protein Is a