Across
- 2. selection that favours individuals with extreme phenotypes at both ends of a range (10)
- 5. Alternative form of a gene (6)
- 7. Selection acting on a range of phenotypes (10)
- 9. Allele frequency change over time within a population (9)
Down
- 1. Environmental factor that determines which phenotypes are favoured (9)
- 2. type of selection often seen when environmental conditions change (11)
- 3. type of selection that favours the mean phenotype (11)
- 4. Characteristic increasing survival (10)
- 6. Feature of a population that natural selection acts upon (9)
- 8. graph shape typically produced by stabilising selection (6)