Multiple Choice
During prophase of mitosis, DNA condenses into X-shaped structures called:
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9. Mitosis and Meiosis
Mitosis
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During which phase of mitosis do centromeres divide, allowing sister chromatids to separate?
A
Metaphase
B
Anaphase
C
Prophase
D
Telophase
Verified step by step guidance1
Recall the main phases of mitosis: Prophase, Metaphase, Anaphase, and Telophase, each with distinct events.
Understand that during Prophase, chromosomes condense and the mitotic spindle begins to form, but sister chromatids remain attached.
In Metaphase, chromosomes align at the metaphase plate, but the centromeres have not yet divided.
During Anaphase, the centromeres divide, allowing the sister chromatids to separate and move toward opposite poles of the cell.
Finally, in Telophase, the chromatids reach the poles and begin to decondense, and the nuclear envelope reforms.
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