30 Dec 2014 Home » Trivia Crack » What is a prion? What is a prion? Posted in Trivia Crack By emoji On December 30, 2014 Question: What is a prion? Choices: A bacteria A protein An atom A virus Correct answer: A protein Post Views: 204 Related Posts Which band plays the song Paranoid Android? Which of the following was not written by Jules Verne? Who is the author of Misery?