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Multiple Choice
Sister chromatids line up at the center of the cell during which phase of mitosis?
A
Prophase
B
Metaphase
C
Telophase
D
Anaphase
Verified step by step guidance
1
Understand the process of mitosis, which is the division of a single cell into two identical daughter cells. Mitosis consists of several phases: prophase, metaphase, anaphase, and telophase.
Recall that during prophase, the chromatin condenses into visible chromosomes, and the mitotic spindle begins to form. The nuclear envelope starts to break down.
Recognize that metaphase is characterized by the alignment of sister chromatids at the metaphase plate, which is the center of the cell. This alignment ensures that each daughter cell will receive an identical set of chromosomes.
In anaphase, the sister chromatids are pulled apart by the spindle fibers towards opposite poles of the cell, ensuring that each new cell will have the correct number of chromosomes.
During telophase, the chromosomes arrive at the poles, the nuclear envelope re-forms around each set of chromosomes, and the cell begins to divide into two separate cells.