Biology·Development & continuity of life · NSSCO 4.1
Cell division: mitosis & meiosis
Narrated lesson · press play
How one cell becomes many — mitosis making identical cells for growth and repair, and meiosis making the different, half-set gametes needed for sexual reproduction.
What you'll learn in this lesson
By the end you should be able to (NSSCO Biology 4.1):
- Define mitosis as nuclear division giving genetically identical cells, and state its role in growth, repair and asexual reproduction
- Define meiosis as a reduction division (diploid → haploid) giving genetically different cells
- State that meiosis produces gametes and is a source of variation
- Distinguish between mitosis and meiosis
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Quick revision
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Miss Rachel and Mike talk through the whole topic — with the figure and working drawn live.
Hands-on lab
Watch mitosis in a root tip in 3D