Across
- 4. many traits controlled by two or more alleles
- 5. selecting mates based on heritable traits
- 7. number of times an allele occurs in a gene pool
- 9. trait controlled by one gene
- 11. body parts share a similar FUNCTION
- 12. a heritable characteristic that increases chance of survival
- 15. process of change over time
Down
- 1. formation of a new species
- 2. change in allele frequency following a dramatic reduction in population
- 3. preserved remains of ancient organisms
- 6. when allele frequencies in gene pool do not change
- 8. how well an organism can survive
- 10. random change in allele frequency
- 13. population that can interbreed to produce fertile of spring
- 14. consists of all genes and different alleles