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Multiple Choice
In what phase of mitosis are the chromosomes pulled apart to opposite sides of the cell?
A
Prophase
B
Anaphase
C
Telophase
D
Metaphase
Verified step by step guidance
1
Begin by understanding 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.
In prophase, the chromosomes condense and become visible. The nuclear envelope begins to break down, and the mitotic spindle starts to form.
During metaphase, the chromosomes align at the cell's equatorial plane, known as the metaphase plate. The spindle fibers attach to the centromeres of the chromosomes.
Anaphase is the phase where the sister chromatids are pulled apart by the spindle fibers toward opposite poles of the cell. This is the key event that distinguishes anaphase from other phases.
Finally, in telophase, the separated chromatids reach the opposite poles, and the nuclear envelope re-forms around each set of chromosomes, completing the process of mitosis.