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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
Prophase
B
Anaphase
C
Metaphase
D
Telophase
Verified step by step guidance
1
Step 1: Begin by understanding 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.
Step 2: Recall the key events of metaphase. During this phase, chromosomes are fully condensed and align along the metaphase plate, which is an imaginary plane at the center of the cell. This alignment ensures that each daughter cell will receive an identical set of chromosomes.
Step 3: Compare metaphase to the other phases of mitosis. In prophase, chromosomes condense and the nuclear envelope begins to break down. In anaphase, sister chromatids are pulled apart to opposite poles of the cell. In telophase, the nuclear envelope reforms around the separated chromatids.
Step 4: Focus on the defining characteristic of metaphase: the alignment of chromosomes along the metaphase plate. This is facilitated by the spindle fibers attaching to the centromeres of the chromosomes.
Step 5: Conclude that the phase of mitosis characterized by the alignment of chromosomes along the metaphase plate is metaphase, as this is the hallmark event of this stage.