Answer:
prion
Explanation:
Prions can be described as misfolded proteins having the potential to transmit their misfolded shape to the normal proteins. Prions are known to cause many neurodegenerative diseases in animals as well as humans. Up till now, the reason for the misfolded proteins or prions remains unknown but it is assumed that the abnormal three dimension structure in infectious and it collapses the other proteins by bringing it to the same abnormal shape.
