Question

match each phase of mitosis with the key event that happens during that stage
(2 points)
prophase
anaphase
metaphase
telophase
chromosomes line up in the middle of the cell sister chromatids are pulled apart to opposite sides.
nuclear membranes form around each set of chromosomes. chromosomes condense and become visible

Explanation:

• Prophase: Chromosomes condense and become visible. This is the first stage of mitosis where chromatin (loose DNA) condenses into distinct chromosomes.
• Anaphase: Sister chromatids are pulled apart to opposite sides. In this stage, the sister chromatids (duplicated chromosomes) separate and move towards the opposite poles of the cell.
• Metaphase: Chromosomes line up in the middle of the cell. The chromosomes align at the metaphase plate (equatorial plane) of the cell.
• Telophase: Nuclear membranes form around each set of chromosomes. This is the final stage of mitosis where new nuclear envelopes form around the separated chromosomes at each pole.

Answer:

• Prophase: Chromosomes condense and become visible.
• Anaphase: Sister chromatids are pulled apart to opposite sides.
• Metaphase: Chromosomes line up in the middle of the cell.
• Telophase: Nuclear membranes form around each set of chromosomes.