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MIC 121 GENERAL CHARACTERISTICS AND STRUCTURE OF VIRUSES Objective Question
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Question

Single-stranded viral RNA genomes of 'positive polarity' are characterized by which property?
Options
A They are complementary to messenger RNA sense and cannot be directly used for protein synthesis.
B They can serve as a template for protein synthesis (messenger RNA sense).
Correct Answer
C They are always linear in structure.
D They must first be converted into DNA before protein synthesis.
Correct Answer

Option B is the correct answer.

Detailed Explanation

The document explains: 'Single-stranded viral RNA genomes are further divided into 'positive polarity' (messenger RNA sense, which can serve as a template for protein synthesis) and 'negative polarity,' or antisense (complementary to messenger RNA sense, which cannot be directly used as a template for protein synthesis).'

Hint

The term 'positive polarity' is directly associated with its function as mRNA.

Question Info

Course: MIC 121
Topic: GENERAL CHARACTERISTICS AND STRUCTURE OF VIRUSES
Type: Objective
Difficulty: Not specified
Question 87 of 984
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