Across
- 4. both ends of the curve have a higher fitness than the middle
- 7. All the genes, and their alleles, in the population.
- 8. A trait controlled by 2 or more genes.
- 9. A change when only a few move to new area and become the dominant alleles for that population.
- 10. Middle of the curve has higher fitness
Down
- 1. A trait controlled by only one gene
- 2. A change following a dramatic reduction in the size of the population.
- 3. The number of times that the allele occurs in a gene pool, compared with the number of times other alleles for the same gene occur.
- 5. One end of bell-curve has higher
- 6. In small populations, chance can cause alleles to become more or less common which is called ______.