Across
- 3. large population, no migration, no natural selection, no mutations, random mating.
- 6. isolation of a population due to differences in communication, mating rituals, etc.
- 8. collection of all the alleles present in a population.
- 9. migrations of individuals out of a population.
- 12. a change in allele frequency following a dramatic reduction in the size of a population.
- 13. random change in allele frequencies that occurs in small populations.
- 14. of a population due to differences in timing of mating.
- 17. percent of an individual of a population that have a particular trait.
- 18. organisms impersonate other organisms to increase fitness.
- 21. individual with the average phenotype have an advantage.
- 22. necessary or desired commodity in an ecosystem.
- 24. individuals with one extreme phenotype have an advantage and the other is selected against.
Down
- 1. selection within a population due to human inference and selection to desired traits.
- 2. homozygous dom and all heterozygous and all homozygous rec represent all individuals in a population.
- 4. any characteristic that increases the fitness of an individual.
- 5. when a small part of a population is separated from the rest and colonizes a new area.
- 7. form of reproductive isolation in which two populations are separated physically by geographic barriers such as rivers, mountains, or stretches of water.
- 10. refers to the differences among individuals in a population.
- 11. individuals at either extreme or the bell curve achieve higher fitness and the average selected against.
- 15. movement of individuals into a population.
- 16. 1 dom and all rec represent all alleles in a population.
- 19. movement of alleles into or out of a population due to the migration of individuals to or from the population.
- 20. measurement of the ability of an individual to survive and reproduce successful offspring.
- 23. individual best suited to their environment achieve higher fitness.