Multiple Choice
Which of the following statements about the T4 lytic life cycle is false?
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17. Viruses
Viruses
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How does the nucleic acid of a T-even bacteriophage enter the host cell?
A
By direct injection through the cell membrane
B
Through endocytosis
C
By being engulfed in a vesicle
D
Via fusion with the host cell membrane
Verified step by step guidance1
Understand the structure of a T-even bacteriophage: It is a type of virus that infects bacteria, consisting of a protein coat and nucleic acid (DNA) inside.
Recognize the mechanism of infection: T-even bacteriophages use a specialized structure called a tail to attach to the bacterial cell surface.
Identify the process of nucleic acid entry: The bacteriophage injects its DNA directly into the host cell through the bacterial cell wall and membrane.
Differentiate from other viral entry methods: Unlike some viruses that enter cells via endocytosis or membrane fusion, T-even bacteriophages do not enter the host cell entirely.
Conclude the method of entry: The nucleic acid of a T-even bacteriophage enters the host cell by direct injection through the cell membrane, bypassing other entry methods like endocytosis or fusion.
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