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Every year, examiners report the same mistakes appearing in GCSE Biology papers. Learning what these common errors are — and how to avoid them — can significantly boost your grade. This lesson covers the most frequent mistakes students make, with clear corrections and explanations.
This is one of the most common errors in biology exams.
| Feature | Mitosis | Meiosis |
|---|---|---|
| Purpose | Growth, repair, asexual reproduction | Producing gametes (sex cells) |
| Number of divisions | One | Two |
| Number of daughter cells | Two | Four |
| Genetic identity | Genetically identical to parent | Genetically different from parent and from each other |
| Chromosome number | Diploid (full set) | Haploid (half set) |
| Where it occurs | Body cells (somatic cells) | Reproductive organs (ovaries, testes) |
How to remember: Mitosis = Making copies (identical). Meiosis = Making gametes (different).
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