Infectious proteins are present in ________.APrionsBViroidsCGemini virusesDSatellite virusesAnswer: A. Prions Read Explanation: The term Prion means proteinaceous infectious particles. Prions are the infectious agents responsible for several neurodegenerative diseases in mammals, like, Creutzfeldt Jakob disease. This happens due to the abnormal folding of the proteins in the brain. Read more in App