Question

summarize what happens to chromosomes during the stage of the cell cycle in which the nucleus divides

Answer 1

In prophase they condense. In metaphase, they line up at the equator. in anaphase they break apart at the centromeres and move in opposite ends. in telophase the cell breaks in two and the chromosomes are now separated into 2 new cells.

Answer 2

Prophase: Chromosomes condense into visual forms and nuclear envelope breaks down.

Metaphase: Chromosomes pair and line up along metaphase plate(midline) and also attatch to mitotic spindles at centromere.

Anaphase: Mitotic spindles attached to chromosomes pull half of the chromosomes to each side of cell.

Telophase: Nuclear envelope begins to reform.
animal cells: Cleavage in cell occurs which divides cell into two.
plant cells: Cell wall forms in the middle of cell to separate the cell.