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Multiple Choice
During which phase of mitosis does the nuclear envelope disappear?
A
Telophase
B
Prophase
C
Anaphase
D
Metaphase
Verified step by step guidance
1
Understand the stages of mitosis: Mitosis is divided into several phases: prophase, metaphase, anaphase, and telophase.
Identify the key events in each phase: During prophase, the chromatin condenses into visible chromosomes, and the nuclear envelope begins to break down.
Recognize the significance of the nuclear envelope: The nuclear envelope is a membrane that surrounds the nucleus, and its breakdown is crucial for the chromosomes to be accessible to the mitotic spindle.
Focus on prophase: In prophase, the nuclear envelope disintegrates, allowing the spindle fibers to interact with the chromosomes.
Compare with other phases: In metaphase, chromosomes align at the cell's equator; in anaphase, sister chromatids separate; and in telophase, the nuclear envelope reforms around the separated chromosomes.