1. Mitosis:
* This is the most common type of cell division and is responsible for growth and repair.
* It produces two daughter cells that are genetically identical to the parent cell.
* The process involves several stages:
* Interphase: The cell grows and replicates its DNA.
* Prophase: The chromosomes condense and become visible.
* Metaphase: The chromosomes line up in the middle of the cell.
* Anaphase: The sister chromatids of each chromosome separate and move to opposite poles of the cell.
* Telophase: The nuclear envelope reforms around the chromosomes at each pole, and the cytoplasm divides, creating two daughter cells.
2. Meiosis:
* This type of cell division is specifically for sexual reproduction.
* It produces four daughter cells that are genetically different from the parent cell.
* This process involves two rounds of division, called Meiosis I and Meiosis II.
* During Meiosis I, homologous chromosomes pair up and exchange genetic material (crossing over), leading to genetic diversity.
* In Meiosis II, the sister chromatids of each chromosome separate, resulting in four haploid daughter cells (containing half the number of chromosomes as the parent cell).
In summary:
* Mitosis is for growth and repair, producing two identical daughter cells.
* Meiosis is for sexual reproduction, producing four genetically diverse daughter cells.
Both mitosis and meiosis are essential for the proper functioning of the body and ensure the continuity of life.
