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Multiple Choice
In which phase of mitosis do chromosomes line up along the metaphase plate in the center of the cell?
A
Telophase
B
Prophase
C
Anaphase
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 along the metaphase plate, which is an imaginary line equidistant from the two spindle poles. This alignment ensures that each daughter cell will receive one copy of each chromosome.
In anaphase, the sister chromatids are pulled apart by the spindle fibers and move toward opposite poles of the cell.
Finally, in telophase, the chromosomes arrive at the poles, the nuclear envelope re-forms around each set of chromosomes, and the cell begins to divide through cytokinesis.