Inheritance · Cambridge IGCSE 0654
B16.1 Chromosomes and genes
B16.1 Chromosomes and genes appeared in 6 of the 6 years from 2020–2025, worth 269 marks across 56 questions — about 4.8 marks each.
Based on 238 real Cambridge past papers, 2020–2025.
Questions per year
How many Co-ordinated Sciences questions tagged to this topic appeared each year.
- 20208
- 20219
- 202213
- 202311
- 20249
- 20256
Appearance history
- Most recent
- 2025
- First in range
- 2020
- Years since last
- 0
- Longest gap
- 0 years
Historical occurrence only — not an exam prediction.
Related topics
Topics that most often share a question with this one.
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