A population of annual wildflowers contains plants with different alleles for flowering time. Some plants flower early and other plants flower late.
A late frost kills flowers that are open.
Scientists recorded the following results.
| Flowering phenotype | Number of plants in generation 1 | Number that produced seeds after the frost | Percentage of the population in generation 8 |
|---|---|---|---|
| Early flowering | 80 | 20 | 24 |
| Late flowering | 80 | 60 | 76 |
Explain how the late frost could have led to the percentages shown in generation 8.
80 exam-style questions on AQA GCSE Biology 6.2 Variation and evolution, covering 6.2.1 Variation, 6.2.2 Evolution, 6.2.3 Selective breeding, 6.2.4 Genetic engineering, and 6.2.5 Cloning. Each one has a worked solution and a mark scheme showing where the marks go.