Across
- 2. isolation of a population due to differences in the timing of mating
- 4. collection of all the alleles present in a population
- 8. type of natural selection in which individuals with the average phenotype have an advantage and the extremes are selected against
- 14. type of natural selection in which individuals at either extreme of the bell curve achieve higher fitness and the average is selected against
- 15. isolation of a population due to physical barriers such as a fence, mountain range, or body of water
- 16. a characteristic that increases the fitness of an individual
- 17. refers to the differences among individuals in a population
- 18. describes the movement of genes/alleles/individuals between 2 neighboring populations- makes populations mare alike
- 19. when organisms will impersonate other organisms to increase fitness
- 20. state of genetic equilibrium characterized by a large population, no migration, no natural selection, no mutations, and random mating
Down
- 1. measurement of the ability of an individual to survive and reproduce successful offspring
- 3. group of individuals of the same species that live in the same area at the same time and can interbreed
- 5. type of natural selection in which individuals with one extreme phenotype have an advantage and the other extreme is selected against
- 6. migration of new individuals into a population
- 7. isolation of a population due to differences in communication, mating rituals, or other behaviors
- 9. random changes in allele frequencies attributed to lick, not fitness
- 10. when a small part of a population is separated from the rest and colonizes a new area- they often respond differently to natural selection pressures
- 11. the idea that those individuals best suited to their environment will achieve higher fitness
- 12. selection within a population due to human interference and selection of desired traits
- 13. percent of individuals of a population that have a particular trait- expressed as a number between 1 and 0