Cell_Division_Year_9.pptx summary for revising cell division

File for revising cell division

1. Cell Division Year 9 - Biology

2. Introduction to Cell Division Cell division is a process by which a parent cell divides into two or more daughter cells. It is essential for growth, development, and repair in living organisms. There are two main types of cell division: 1. Mitosis 2. Meiosis

3. Mitosis Mitosis is a type of cell division that results in two identical daughter cells. Stages of mitosis: 1. Prophase 2. Metaphase 3. Anaphase 4. Telophase 5. Cytokinesis

4. Meiosis Meiosis is a type of cell division that reduces the chromosome number by half, resulting in four daughter cells. It occurs in the production of gametes for sexual reproduction. Meiosis increases genetic diversity through recombination.

5. Key Differences: Mitosis vs Meiosis 1. Mitosis produces 2 identical cells; Meiosis produces 4 genetically unique cells. 2. Mitosis occurs in somatic cells; Meiosis occurs in gametes. 3. Mitosis has one division; Meiosis has two divisions.

6. Importance of Cell Division 1. Growth and development of organisms. 2. Repair of damaged tissues. 3. Production of gametes for sexual reproduction.