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MIC 121 GENERAL CHARACTERISTICS AND STRUCTURE OF VIRUSES Objective Question
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Question

During the penetration stage of the lytic cycle in bacteriophages, what primary action do they perform?
Options
A Integrate their genome into the host chromosome.
B Inject their DNA into the bacterium using an enzyme like lysozyme.
Correct Answer
C Self-assemble newly synthesized viral components.
D Attach to specific bacterial surface receptors via tail fibres.
Correct Answer

Option B is the correct answer.

Detailed Explanation

The 'Penetration (Entry)' section for the lytic cycle states: 'After attachment, bacteriophages use an enzyme called lysozyme in their tails to break down the bacterial cell wall, then use their tails like hypodermic needles to inject their DNA (nucleic acid) into the bacterium.'

Hint

This stage occurs after attachment and involves getting the genetic material inside the host.

Question Info

Course: MIC 121
Topic: GENERAL CHARACTERISTICS AND STRUCTURE OF VIRUSES
Type: Objective
Difficulty: Not specified
Question 109 of 984
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