Which step of mitosis involves the nucleus splitting and nuclear membranes forming around each new nucleus

Mitosis is a process cell division, where one cell divides into two identical cells. Mitosis consists of four phases - prophase, metaphase, anaphase, telophase and cytokinesis

1. Prophase: Chromatin in the nucleus condenses and chromosomes pair up

2. Metaphase: Chromosomes line up at the center of the cell.

3. Anaphase: The sister chromatids separate from each other to the opposite sides of the cells.

4. Telophase and Cytokinesis: Membrane forms around each set of chromosomes on two opposite sides of the cells and cell divides into two identical daughter cells.