IGCSE Biology - Mitosis and meiosis (17.2, 17.3)

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Cambridge IGCSE Biology (0610/0970)
Chapter 17 - Inheritance
Topic 17.2 - Mitosis
Topic 17.3 - Meiosis
For exams in 2023, 2024 & 2025 (core and extended)

As always this video follows the Cambridge syllabus exactly and contains absolutely everything you need to know for your final exam!

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Timestamps:
0:00 Contents
0:30 Mitosis
1:00 Roles of mitosis
1:22 Stem cells
1:47 Meiosis

Mitosis and meiosis do not feature in the core syllabus.

Extended content:
- Describe mitosis as nuclear division giving rise to genetically identical cells (details of the stages of mitosis are not required).
- State the role of mitosis in growth, repair of damaged tissues, replacement of cells and asexual reproduction.
- State that the exact replication of chromosomes occurs before mitosis.
- State that during mitosis, the copies of chromosomes separate, maintaining the chromosome number in each daughter cell.
- Describe stem cells as unspecialised cells that divide by mitosis to produce daughter cells that can become specialised for specific functions.
- State that meiosis is involved in the production of gametes.
- Describe meiosis as a reduction division in which the chromosome number is halved from diploid to haploid resulting in genetically different cells (details of the stages of meiosis are not required).