A) incomplete virus
B) slow virus
C) gemini viruses
D) satellite virus
Correct Answer: B
Solution :
Protein infectious protein (prions) are also known as slow viruses. A prion does not replicate itself, it causes another protein to change its shape and thereby became a prion. Dr Carleton Gajdusek and Stanley Prusines did most of work on there infections proteins and was awarded Noble Prize in 1976 and in 1977 respectively.
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