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A scientist looks into a microscope and sees that replicated chromosome pairs are lined up in the center of a cell. The scientist then sees the mitotic spindle from each side of the cell attach to a chromosome. Which mitotic phase is the scientist likely witnessing?
• prophase
metaphase
• anaphase
• telophase

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Answered by GPT-5 mini AI
metaphase

Explanation: replicated chromosomes (sister chromatids) line up at the metaphase plate and spindle fibers from opposite poles attach to kinetochores before separation in anaphase.