Here's a breakdown of the process:
1. Interphase:
* G1 Phase: The cell grows and synthesizes proteins and organelles.
* S Phase: DNA replication occurs, resulting in two identical copies of each chromosome.
* G2 Phase: The cell continues to grow and prepares for mitosis.
2. Prophase:
* The chromosomes condense and become visible.
* The nuclear envelope breaks down.
* The mitotic spindle forms, made of microtubules, which will help separate the chromosomes.
3. Metaphase:
* The chromosomes line up at the center of the cell, forming the metaphase plate.
* Each chromosome is attached to a spindle fiber at its centromere.
4. Anaphase:
* The centromeres of the chromosomes split, and the sister chromatids (identical copies) are pulled apart by the spindle fibers to opposite poles of the cell.
5. Telophase:
* The chromosomes reach the poles of the cell and begin to uncoil.
* The nuclear envelope reforms around each set of chromosomes.
* The cytoplasm divides in a process called cytokinesis, forming two daughter cells.
Key points:
* Identical Daughter Cells: Mitosis produces two daughter cells that are genetically identical to the parent cell.
* Growth and Repair: Mitosis is essential for growth and repair of tissues.
* Asexual Reproduction: Some organisms reproduce asexually through mitosis.
Note: While mitosis is the process of forming two identical daughter cells, meiosis is another type of cell division that produces four non-identical daughter cells (gametes) used for sexual reproduction.
