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Multiple Choice
During which phase of mitosis does the nuclear membrane dissolve?
A
Anaphase
B
Prophase
C
Telophase
D
Metaphase
Verified step by step guidance
1
Understand the phases 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 membrane begins to dissolve.
Recognize the significance of the nuclear membrane dissolving: The dissolution of the nuclear membrane allows the spindle fibers to interact with the chromosomes, which is crucial for their alignment and separation.
Compare the phases: In metaphase, chromosomes align at the cell's equatorial plane; in anaphase, sister chromatids separate; and in telophase, the nuclear membrane reforms around the separated sets of chromosomes.
Conclude that the nuclear membrane dissolves during prophase, which is the first phase of mitosis where these changes occur.