During which stage of mitosis are chromosomes lined up in the center of the cell?

• A. Anaphase
• B. Metaphase
• C. Telophase
• D. Prophase

Answer: (B)

Verified step by step guidance

1. Understand the stages of mitosis: Mitosis is divided into several stages: prophase, metaphase, anaphase, and telophase. Each stage has distinct characteristics and functions.
2. Identify the key characteristics of metaphase: During metaphase, chromosomes align at the metaphase plate, which is the center of the cell. This alignment ensures that each daughter cell will receive an identical set of chromosomes.
3. Compare metaphase with other stages: In prophase, chromosomes condense and become visible. In anaphase, sister chromatids are pulled apart to opposite poles of the cell. In telophase, the cell prepares to divide, and the nuclear envelope reforms around the separated chromatids.
4. Recognize the importance of chromosome alignment: The alignment of chromosomes during metaphase is crucial for accurate chromosome segregation. This prevents genetic abnormalities in the daughter cells.
5. Conclude that the stage where chromosomes are lined up in the center of the cell is metaphase, based on the characteristics and functions of each mitosis stage.