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Multiple Choice
Which of the following does not occur during prophase in mitosis?
A
The mitotic spindle begins to form
B
Sister chromatids separate
C
Chromosomes condense and become visible
D
The nuclear envelope breaks down
Verified step by step guidance
1
Understand the stages of mitosis: Mitosis is divided into several stages: prophase, metaphase, anaphase, and telophase. Each stage has specific events that occur.
Identify the key events of prophase: During prophase, chromosomes condense and become visible, the nuclear envelope breaks down, and the mitotic spindle begins to form.
Analyze the given options: Compare each option with the events that occur during prophase.
Recognize the event that does not belong: Sister chromatids separating is an event that occurs during anaphase, not prophase.
Conclude which event does not occur during prophase: Based on the analysis, identify 'Sister chromatids separate' as the event that does not occur during prophase.