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MIC 121 GENERAL CHARACTERISTICS AND STRUCTURE OF VIRUSES Objective Question
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Question

What is the primary composition of prions, and what kind of diseases do they cause?
Options
A Nucleic acids encased in a protein coat, causing plant diseases.
B Infectious proteins with no nucleic acid, causing transmissible spongiform encephalopathies (TSEs).
Correct Answer
C Lipid bilayer membranes containing host DNA, causing respiratory infections.
D Single-stranded RNA molecules, causing delayed sprouting in potatoes.
Correct Answer

Option B is the correct answer.

Detailed Explanation

The 'Prions' section states: 'Prions are infectious proteins whose extracellular forms contain no nucleic acid and no envelope.' It also mentions: 'Prions cause various forms of transmissible spongiform encephalopathy (TSE) in human and animals.'

Hint

Remember the fundamental nature of prions as infectious agents.

Question Info

Course: MIC 121
Topic: GENERAL CHARACTERISTICS AND STRUCTURE OF VIRUSES
Type: Objective
Difficulty: Not specified
Question 114 of 984
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