Biology 9700 · 17 Selection and evolution
17.2 Natural and artificial selection
Explain natural selection, genetic drift, and Hardy-Weinberg equilibrium, and describe the principles and examples of selective breeding.
- Questions
- 102
- Years
- 2002–2026
- Multiple choice
- 4
- Written answer
- 98
- Average marks
- 10.6
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Where this subtopic appears
- Paper 4variants 04, 41, 42, 4390
- Paper 5variants 05, 52, 535
- Paper 1variants 11, 12, 134
- Paper 6variants 062
- Paper 2variants 231
Questions by year
| Year | Feb/March | May/June | Oct/Nov | Total |
|---|---|---|---|---|
| 2026 | – | 2 | – | 2 |
| 2023 | 1 | 5 | 5 | 11 |
| 2022 | 2 | 3 | 1 | 6 |
| 2021 | 1 | 3 | 3 | 7 |
| 2020 | 1 | 2 | 4 | 7 |
| 2019 | 2 | 7 | 5 | 14 |
| 2018 | 2 | 4 | 5 | 11 |
| 2017 | 2 | 5 | 4 | 11 |
| 2016 | 1 | 3 | 3 | 7 |
| 2015 | – | 3 | 6 | 9 |
| 2010 | – | – | 3 | 3 |
| 2009 | – | 1 | 1 | 2 |
| 2008 | – | 1 | 1 | 2 |
| 2007 | – | 1 | – | 1 |
| 2006 | – | 2 | 1 | 3 |
| 2005 | – | 1 | 2 | 3 |
| 2004 | – | 1 | – | 1 |
| 2003 | – | – | 1 | 1 |
| 2002 | – | – | 1 | 1 |
