Multiple Choice
How does the nucleic acid of a T-even bacteriophage enter the host cell?
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17. Viruses
Viruses
Multiple Choice
Lysozyme is important for which of the following stages of lytic replication in bacteriophage T4?
A
Penetration of the phage DNA into the host cell
B
Lysis of the host cell to release new phage particles
C
Assembly of new phage particles
D
Attachment of the phage to the host cell
Verified step by step guidance1
Understand the role of lysozyme: Lysozyme is an enzyme that breaks down the cell walls of bacteria by cleaving the bonds in peptidoglycan, a major component of bacterial cell walls.
Identify the stages of lytic replication: The lytic cycle involves several stages, including attachment, penetration, biosynthesis, maturation, and lysis.
Determine where lysozyme is active: Lysozyme is crucial during the lysis stage, where it helps break down the bacterial cell wall, allowing the release of newly formed phage particles.
Analyze the options: Consider each stage of the lytic cycle and determine where the breakdown of the bacterial cell wall is necessary.
Conclude the role of lysozyme: Since lysozyme facilitates the breakdown of the host cell wall, it is specifically important for the lysis stage, where new phage particles are released.
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