Here's a breakdown of what happens:

* Replication of DNA: The cell's DNA is duplicated, ensuring each daughter cell receives a complete copy.

* Nuclear Division: The nucleus divides into two, separating the duplicated chromosomes.

* Cytokinesis: The cytoplasm divides, creating two separate daughter cells.

Mitosis is essential for:

* Growth and development: From a single fertilized egg, mitosis enables the formation of all the cells in an organism.

* Repair and renewal: It replaces damaged or worn-out cells.

* Asexual reproduction: In some organisms, mitosis is the primary mode of reproduction.