Question Detail

MIC 121 GENERAL CHARACTERISTICS AND STRUCTURE OF VIRUSES Objective Question
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Question

Which of the following statements correctly describes characteristics of a helical capsid?
Options
A It typically has 20 triangular faces and 12 corners.
B It is composed of multiple types of capsomers arranged in a complex structure.
C Most helical viruses are enveloped, and all are RNA viruses.
Correct Answer
D The tobacco mosaic virus (TMV) is an example of an icosahedral capsid virus.
Correct Answer

Option C is the correct answer.

Detailed Explanation

Under 'Helical capsid', the document states: 'Most of the helical viruses are enveloped, and all are RNA viruses.' Option A describes icosahedral capsids, and TMV is explicitly given as an example of a helical virus.

Hint

Recall the association between helical symmetry, envelopes, and genome type.

Question Info

Course: MIC 121
Topic: GENERAL CHARACTERISTICS AND STRUCTURE OF VIRUSES
Type: Objective
Difficulty: Not specified
Question 119 of 984
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