Multiple choice

Which of the following statements is incorrect regarding the prions?

  1. Fungal prions are fatal to their hosts.

  2. Prions come in different strain.

  3. Prions are not considered as living organisms.

  4. All known prions induce the formation of an amyloid fold in their hosts.

  5. The incubation period of prion diseases is determined by the exponential growth rate associated with prion replication.
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A Correct answer
Explanation

Proteins showing prion-type behavior are also found in some fungi, which has been useful in helping to understand mammalian prions. Fungal prions do not appear to cause disease in their hosts.

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