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)

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.