unit 6 study guide

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Across
  1. 3. When a population experiences a rapid, drastic reduction in the number of individuals in the population - reduces variation and changes allele frequencies of the population:
  2. 8. Refers to the differences among individuals in a population
  3. 11. A necessary or desired commodity in an ecosystem - individuals of a population will compete for these
  4. 12. Group of individuals of the same species that live in the same area at the same time and can interbreed
  5. 14. Hardy-weinberg equation that states that all the dominant alleles (p) + all the recessive alleles (q) represent all the alleles present in a population
  6. 16. State of genetic equilibrium characterized by a large population, no migration, no natural selection, no mutations, and random mating
  7. 17. Type of natural selection in which individuals with one extreme phenotype have an advantage and the other extreme is selected agains
  8. 18. Isolation of a population due to differences in the timing of mating
  9. 19. Isolation of a population due to physical barriers such as a fence, mountain range, or body of wate
  10. 20. Measurement of the ability of an individual to survive and reproduce successful offspring
  11. 21. Hardy-weinberg equation that states that all the homozygous dominant individuals (p²) + all the heterozygous individuals (2pq) + all the homozygous recessive individuals (q²) represent all the individuals in a population
Down
  1. 1. The idea that those individuals best suited to their environment will achieve higher fitness
  2. 2. Type of natural selection in which individuals with the average phenotype have an advantage and the extremes are selected agains
  3. 4. Type of natural selection in which individuals at either extreme of the bell curve achieve higher fitness and the average is selected against
  4. 5. Collection of all the alleles present in a population
  5. 6. Selection within a population due to human interference and selection of desired traits
  6. 7. Isolation of a population due to differences in communication, mating rituals, or other behavior
  7. 9. Migration of new individuals into a population
  8. 10. Random changes in allele frequencies attributed to luck, not fitness
  9. 13. Any characteristic that increases the fitness of an individual
  10. 15. Migration of individuals out of a population
  11. 19. Describes the movement of genes/alleles/individuals between 2 neighboring populations - makes populations more alike