Multiple Choice
How does the nucleic acid of T-even bacteriophages enter the host cell?
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17. Viruses
Viruses
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What part of the bacteriophage is injected into a bacterial cell?
A
Tail fibers
B
Envelope
C
Viral DNA
D
Capsid
Verified step by step guidance1
Understand the structure of a bacteriophage: A bacteriophage is a type of virus that infects bacteria. It typically consists of a head (capsid), which contains the viral DNA, a tail, and tail fibers.
Identify the function of each part: The capsid protects the viral DNA, the tail helps in injecting the DNA into the host cell, and the tail fibers are used for attachment to the bacterial cell surface.
Focus on the infection process: During infection, the bacteriophage attaches to the bacterial cell using its tail fibers.
Determine what is injected: Once attached, the bacteriophage uses its tail to inject its genetic material, which is the viral DNA, into the bacterial cell.
Conclude the process: The viral DNA is the part of the bacteriophage that enters the bacterial cell, allowing the virus to hijack the bacterial machinery to replicate itself.
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