The scientist is likely witnessing metaphase. During metaphase, replicated chromosome pairs (sister chromatids) align at the cell's equatorial plane (metaphase plate), and the mitotic spindle fibers from opposite poles of the cell attach to the centromeres of the chromosomes. This is a crucial stage in cell division, ensuring that each daughter cell will receive an identical set of chromosomes.
a scientist, looks into a microscope, and that replicated chromosome pairs are lined up in the center of a cell period. The scientist then sees the mitotic spindle from each side of the cell attached to a chromosome. Which mitotic phase is the scientist likely witnessing.
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