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Multiple Choice
Which phase of mitosis is characterized by the alignment of chromosomes along the metaphase plate in the center of the cell?
A
Metaphase
B
Anaphase
C
Telophase
D
Prophase
Verified step by step guidance
1
Understand the process of mitosis, which is the division of a cell's nucleus into two identical nuclei. Mitosis consists of several phases: prophase, metaphase, anaphase, and telophase.
Recall the key characteristics of metaphase: during this phase, chromosomes align along the metaphase plate, which is an imaginary plane in the center of the cell. This alignment ensures that each daughter cell will receive an identical set of chromosomes.
Compare metaphase with the other phases of mitosis: In prophase, chromosomes condense and the nuclear envelope breaks down. In anaphase, sister chromatids are pulled apart to opposite poles of the cell. In telophase, the nuclear envelope reforms around the separated chromatids.
Focus on the alignment of chromosomes along the metaphase plate, which is the defining feature of metaphase. This alignment is facilitated by spindle fibers attaching to the centromeres of the chromosomes.
Conclude that the phase of mitosis characterized by the alignment of chromosomes along the metaphase plate is metaphase.