16.

Which is true of prions?

A. All prion-associated diseases are characterized by slowly progressive, non-inflammatory neuronal degeneration and are fatal.

B. The replication of prions are not clearly understood.

C. Prions are protein particles that contain a genome of RNA or DNA which makes them an infectious agent.

D. Available antimicrobial agents are useless against them because prions lack reproductive and metabolic functions. 

All of of the above

A, B, & D

B & C only