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Multiple Choice
During which phase of mitosis do sister chromatids segregate to opposite poles?
A
Metaphase
B
Anaphase
C
Telophase
D
Prophase
Verified step by step guidance
1
Understand the process of mitosis, which is the division of a single cell into two genetically identical daughter cells. Mitosis consists of several phases: prophase, metaphase, anaphase, and telophase.
Recall that during metaphase, the chromosomes align at the cell's equatorial plane, known as the metaphase plate. The sister chromatids are attached to spindle fibers from opposite poles.
Recognize that anaphase is the phase where sister chromatids are pulled apart. The spindle fibers shorten, pulling the chromatids toward opposite poles of the cell.
In telophase, the separated chromatids reach the opposite poles, and the nuclear envelope begins to reform around each set of chromosomes, marking the near end of mitosis.
Prophase is the initial phase where the chromatin condenses into visible chromosomes, and the mitotic spindle begins to form, but segregation of sister chromatids does not occur in this phase.