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Multiple Choice
During which phase of mitosis do the sister chromatids separate and move toward opposite poles of the cell?
A
Metaphase
B
Prophase
C
Anaphase
D
Telophase
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 the sister chromatids separate. The spindle fibers shorten, pulling the chromatids apart toward opposite poles of the cell.
In prophase, the chromosomes condense and become visible, and the mitotic spindle begins to form. The nuclear envelope breaks down, but the sister chromatids are not yet separated.
During telophase, the separated chromatids reach the opposite poles, and the nuclear envelope re-forms around each set of chromosomes, leading to the end of mitosis.