Across
- 2. theory of evolution creator
- 4. the deeper it is the older it is
- 6. same function but not related
- 8. age of dinosaurs
- 11. percentage of DNA from each parent
- 12. age of mammals
- 15. theory of transformation
- 17. traits through generations
- 18. animal Darwin studied
- 20. changing a gene in a lab
- 21. change in population overtime
- 22. what killed the dinosaurs
- 24. similar bone structure
- 26. 88% of Earth's history
- 27. actual age of fossil
- 28. age of fish
- 29. change in a gene
- 30. what codes for a specific trait
- 31. plant Mendel studied
- 34. first organisms on Earth
- 35. multiple versions of the same gene
Down
- 1. survival of the fittest
- 3. majority of animals dying off
- 5. humans decide best traits
- 7. different pair of alleles
- 9. evidence for evolution
- 10. same pair of alleles
- 13. a condensed structure of DNA
- 14. estimated age of fossil
- 16. the genetic code of a gene
- 19. scientist that studied genetics
- 21. change in this causes extinction
- 23. predicts genotypes in offspring
- 25. Earth's history
- 32. trait that helps an animal survive
- 33. what is created to express a trait