2. 200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 Eras Back When Adapt, Evolve, Move On It’s All In The Genes Crazy Crossings

3. This is the Longest Era

4. What is Precambrian?

5. This Era Includes the Mass Extinction of the Dinosaurs

6. What is the Mesozoic?

7. This is the most recent era.

8. What is the Cenozoic Era?

9. This is when many species become extinct because of environmental changes

10. What is a Mass Extinction?

11. This Era Includes the Evolution of Humans.

12. What is the Cenozoic Era?

13. These give evidence that an organism lived long ago

14. What are fossils?

15. This process in which biological change occurs over time and descendants differ from their ancestor

16. What is Evolution?

17. All of the alleles of a Bob Bird population are part of this.

18. What is a gene pool?

19. A body structure in a present day organism that no longer serves its original purpose, but was used by its ancestors

20. What are vestigial structures?

21. This is a change in allele frequency due to chance

22. Genetic Drift?

23. Fossil evidence suggests that a number of members of one fish species from an ancient lake in Death Valley, California, became several isolated species. Each of these new species lived in a different pond. This kind of speciation is shown in this situation

24. What is Geographic Isolation?

25. The picture to the left shows fossils found in rock layers. This fossil is the oldest

26. What is organism A?

27. This type of allele is caused by a lethal mutation.

28. What is a lethal allele?

29. In jaba fish, a recessive allele (a) codes for a condition that always causes offspring to die before they hatch. This is how this recessive allele stays in the gene pool. (Give the parents genotype!)

30. What is heterozygous individuals or carriers? Aa and Aa

31. This can increase an organisms chance of survival in a changing environment

32. What is Variation?

33. These are two cells produced in meiosis.

34. What are sperm and egg?

35. Sponge Bob has 32 chromosomes in their body cells. This is how many chromosomes would be in Sponge Bob’s sperm cell.

36. What is 16 Chromosomes?

37. There are 22 chromosomes in the gametes of Easter Bunny. How many chromosomes would be in the somatic cells of this Bunny?

38. What is 44 Chromosomes?

39. In the Kingdom of Far, Far Away, donkeys can either talk or not talk. Allele D is expressed as not talking, while allele d is expressed as talking. These are the possible genotypes for a non-talking donkey.

40. What is DD and Dd?

41. In the Kingdom of Far, Far Away, donkeys can either talk or not talk. Allele D is expressed as not talking, while allele d is expressed as talking. When two heterozygous donkeys mate, this is the chance that their offspring that will be able to talk.

42. What is 25%?

43. This is the name given to this process in which parts of the chromosomes are exchanged during meiosis.

44. What is a crossing over?

45. These are the two sex chromosomes in a male.

46. What is X and Y?

47. In a Ogre, G codes for a green colored ogre and g codes for a purple colored ogre. F codes for a fat ogre and f codes for a skinny ogre. If an ogre has a genotype of GgFf, these are the four possible genetic combinations that could be present in a a female ogre’s unfertilized egg.

48. What are GF, Gf, gF, and gf?

49. Meiosis and sexual reproduction lead to more genetic variation and recombination. This is why variation is important.

50. What is Helping an Organism Survive a Environmental Change ?

51. This is why recessive X-linked traits tend to be expressed more commonly in males

52. What is Only One X Chromosome?