Question

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? (1 point)
• prophase
• telophase
anaphase
• metaphase

Answer 1

The scientist is likely witnessing **metaphase**. During this phase of mitosis, replicated chromosome pairs align at the cell's equatorial plane (the metaphase plate), and the mitotic spindle fibers attach to the centromeres of the chromosomes.