Across
- 4. a change when only a few move to new area and become the dominant alleles for that
- 5. a change following a dramatic reduction in the size of the population.
- 6. is controlled by 2 or more genes.
- 8. is all the genes, and their alleles, in the population.
- 9. is a trait controlled by only one gene.
- 10. one end of bell-curve has higher
Down
- 1. is a group of individuals of the same species that can interbreed.
- 2. both ends of the curve have a higher fitness than the middle
- 3. middle of the curve has higher
- 7. is the number of times that the allele occurs in a gene pool