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MIC 121 GENERAL CHARACTERISTICS AND STRUCTURE OF VIRUSES Objective Question
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Question

What is 'lysogenic conversion' (or phage conversion) in the context of a lysogenic bacteriophage infection?
Options
A The process where the prophage excises from the host chromosome to enter the lytic cycle.
B The phenomenon where the presence of a prophage alters the observable characteristics (phenotype) of the host bacterium.
Correct Answer
C The integration of the phage genome into the host chromosome, leading to host cell lysis.
D The rapid replication of viral particles that leads to the death of the host cell.
Correct Answer

Option B is the correct answer.

Detailed Explanation

The document defines it as, 'This change in the host's phenotype due to the prophage is called lysogenic conversion or phage conversion.' It also gives examples like Vibrio cholerae gaining virulence from phage-encoded toxins.

Hint

This term refers to a change in the host, not the virus's immediate replication strategy.

Question Info

Course: MIC 121
Topic: GENERAL CHARACTERISTICS AND STRUCTURE OF VIRUSES
Type: Objective
Difficulty: Not specified
Question 145 of 984
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