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Multiple Choice
In which stage of mitosis do the chromosomes line up along the middle 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 stages: prophase, metaphase, anaphase, and telophase.
Recall that during prophase, the chromosomes condense and become visible, and the nuclear envelope begins to break down. The spindle fibers start to form.
Identify that metaphase is the stage where 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 an identical set of chromosomes.
Recognize that during anaphase, the sister chromatids are pulled apart by the spindle fibers and move toward opposite poles of the cell.
Note that in telophase, the chromosomes begin to de-condense, the nuclear envelope re-forms around each set of chromosomes, and the cell prepares to divide its cytoplasm through cytokinesis.