Unit 6 Vocab

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Across
  1. 4. selection Type of natural selection where one extreme phenotype is favored
  2. 5. selection Type of natural selection where the average phenotype is favored and extremes are selected against
  3. 7. pool Collection of all the alleles present in a population
  4. 8. drift Random changes in allele frequencies caused by chance rather than fitness
  5. 10. flow Movement of genes or alleles between neighboring populations that makes them more alike
  6. 12. Any characteristic that increases the fitness of an individual
  7. 13. variation Differences among individuals within a population
  8. 15. effect A rapid reduction in population size that reduces genetic variation
  9. 17. selection Type of natural selection where individuals at both extremes have higher fitness than the average
Down
  1. 1. Movement of individuals into a population
  2. 2. effect When a small group separates and forms a new population with different allele frequencies
  3. 3. frequency Percent of individuals in a population with a particular allele, expressed as a number between 0 and 1
  4. 6. A necessary or desired commodity in an ecosystem that individuals compete for
  5. 7. pool All the genetic information, including all alleles, present in a population
  6. 9. Movement of individuals out of a population
  7. 11. Measurement of an individual’s ability to survive and reproduce successful offspring
  8. 13. isolation Isolation caused by physical barriers like mountains, rivers, or bodies of water
  9. 14. selection Process where individuals best suited to their environment have higher fitness
  10. 16. isolation Isolation caused by differences in behaviors such as mating rituals or communication
  11. 18. Group of individuals of the same species living in the same area at the same time that can interbreed