Biology Crossword

1234567891011121314151617181920
Across
  1. 1. preserved remains
  2. 4. founder of evolution
  3. 6. principle within stratigraphy
  4. 8. average individual
  5. 9. method of dating
  6. 10. change in the characteristics
  7. 13. reduction in population
  8. 15. enzyme produced by bacteria
  9. 17. form of isolation
  10. 19. principle of genetic variation
  11. 20. method for making copies of DNA
Down
  1. 2. non-extreme trait value
  2. 3. selective breeding
  3. 5. alteration in the nucleotide sequence
  4. 7. influence by more than one gene
  5. 11. gene that is transferred naturally
  6. 12. reduction of genetic variation
  7. 14. photographs of all chromosomes
  8. 16. founder of lamarckian evolution
  9. 18. stock of different genes