Cell division and sex determination
Free ESAT Biology lesson. Worked examples, common mistakes and a self-check.
What the lesson covers
- Chromosomes: what is being shared out (B3.1, B3.2)
- The cell cycle and mitosis (B3.1)
- Cell counting, mitotic index and cancer (B3.1)
- Meiosis and gametes (B3.2)
- Asexual and sexual reproduction (B3.3)
- Sex determination and genetic diagrams (B3.4)
- Mitosis versus meiosis: putting it together
- Self-check questions with answers (8)
Specification: B3.1-3.4. Codes follow the UAT-UK ESAT content specification.
How to use it
- Read a section, then cover the worked example and try it yourself.
- Check the common mistakes list: these are the slips the real test is built to catch.
- Do the self-check without looking back. Mark it against the answers.
- Then practise the topic under time, with the matching practice set.
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