mechanisms of evolution

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Across
  1. 3. all the alleles in a population
  2. 4. mating with no preference
  3. 7. can produce fertile and viable offspring
  4. 9. common trait from past ancestor
  5. 11. able to reproduce
  6. 14. non-random mating
  7. 15. change due to random mating
  8. 19. both traits are favored
  9. 20. the change in the form of a gene
Down
  1. 1. one trait is favored
  2. 2. moves in
  3. 5. made up of the same species
  4. 6. survival based on fitness
  5. 8. middle trait is favored
  6. 10. shift of organisms from 1 population-another
  7. 12. unit of inheritance
  8. 13. shown in the most recent ancestor
  9. 16. moves out
  10. 17. version of a gene
  11. 18. random changes in DNA