Natural Selection
Across
- 4. the collection of all the alleles of all the genes in a population
- 6. a random change in allele frequencies in a population due to chance events
- 8. the change in allele frequencies in a population over time
- 11. a random change in the DNA sequence of a gene or chromosome
- 12. the proportion of a specific allele in a gene pool
- 13. the relative ability of an individual to survive and reproduce in its environment
- 14. the diversity of alleles and genotypes in a population
Down
- 1. the process by which individuals with certain inherited traits have higher survival and reproduction than others in a given environment
- 2. a state in which allele and genotype frequencies in a population remain constant from generation to generation, assuming no evolutionary forces are acting
- 3. a group of individuals of the same species that live in the same area and interbreed
- 5. the evolution of new species or higher taxonomic groups from existing ones
- 7. the change in the heritable characteristics of biological populations over successive generations
- 9. the change in frequency of an allele due to its linkage with a beneficial allele on the same chromosome
- 10. a heritable trait that increases the fitness of an individual in a particular environment
- 14. the movement of alleles between populations due to migration or interbreeding