Mitosis is the process by which a eukaryotic cell divides its nucleus into two identical daughter nuclei. It is a crucial part of the cell cycle and allows for growth, development, and repair of tissues in multicellular organisms. During mitosis, the cell goes through a series of stages, including prophase, metaphase, anaphase, and telophase, where chromosomes are condensed, aligned at the center of the cell, separated into two sets, and ultimately divided into two daughter cells. The process of mitosis ensures that each daughter cell receives the correct number of chromosomes and genetic material necessary for proper cellular function. It is tightly regulated by various checkpoints to prevent errors and maintain genomic stability. Dysfunction in mitosis can lead to developmental abnormalities, cancer, and other diseases.