Population Genetics and Speciation

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Across
  1. 3. a random change in allele frequency in a population
  2. 8. the study of the structure and form of an organism
  3. 9. the principle that states that the frequency of alleles in a population does not change over generations unless outside forces act on the population
  4. 11. the proportion of gene copies in a population that are a given allele
  5. 15. a selection in which the most extreme form of a trait is favored and becomes more common
  6. 16. a graph of the frequency of some variable that resembles a bell-shaped curve
  7. 18. a selection in which the average form of a trait is favored and becomes more common
  8. 19. favored and becomes more common
Down
  1. 1. the formation of new species as a result of evolution
  2. 2. the ratio of individuals with a particular phenotype to the total number or individuals in a population
  3. 4. all the genes of the reproductively active members of a population
  4. 5. a state that exists when the concentration of a substance is the same throughout a space
  5. 6. the movement of an individual or group into an area
  6. 7. a model of evolution in which short periods of drastic change are separated by long periods of little or no change
  7. 8. a change in collective genetic material of a population
  8. 10. selection when mate is chosen based on a trait
  9. 12. idea that speciation occurs at a gradual rate
  10. 13. when species arise as a result of geographic isolation
  11. 14. the study of the frequency and interaction of alleles and genes in a population
  12. 15. a selection in which two extreme forms of a trait
  13. 17. the movement of an individual or group out of an area