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Cellular Replication Notes Review 1. What are the two different ways cells divide? 2. What are the cells like after mitosis? 3. What are the cells like after meiosis? 4. What are gametes? 5. What is it called when a cell has two sets of chromosomes? What symbol is it given? 6. What is the purpose of meiosis? 7. Where does meiosis occur in males? 8. Where does meiosis occur in females? 9. How many times does a cell divide during meiosis? 10. What does it mean when homologous chromosomes cross-over? 11. Sketch a diagram of two homologous chromosomes crossing-over. 12. After meiosis, how many haploid cells are made by meiosis? 13. What does diploid mean? 14. What does haploid mean? 15. What does the random crossing-over of chromosomes cause? 16. What is spermatogenesis? 17. What is Oogenesis? 18. What is made after mitosis? 19. What is made after meiosis? 20. What does mitosis allow organisms to do? 21. What does meiosis allow organisms to do? 22. What is fertilization? 23. What is zygote? 24. Write out fertilization as if it were a math equation. Label each part of your diagram. Meiosis Similarities Mitosis Write which term goes with each phrase. Some questions can have more than one answer Meiosis Mitosis 25. Produces cells that are genetically identical 26. Produces gametes 27. Produces cells that are haploid 28. Produces cells that allow an organism to grow and develop 29. Happens only in the ovaries and testicles 30. Produces cells that are diploid 31. Produces sperm and eggs 32. Produces cells that are 2n 33. Produces cells that are genetically unique. 34. Produces cells that are n 35. Crossing-over happens during this type of cellular division 36. Cells divide twice Match the following terms with their correct meaning 37. One set of chromosomes 38. A fertilized egg 39. The sex cells 40. Two sets of chromosomes 41. Makes identical cells 42. Process that makes one egg 43. The exchange of genes on homologous chromosomes a) b) c) d) e) f) g) h) i) j) Oogenesis Fertilization Crossing-over Mitosis Ovaries Spermatogenesis n Meiosis 2n Zygote 44. Process that makes 4 sperm 45. Location of meiosis in females 46. Process when a sperm joins with an egg For the following statements, determine if the statement is true or false. If False, change the underlined word to make it true. _____________________47. The main purpose of meiosis is to make cells that are genetically identical to the parent cells _____________________48. Spermatogenesis causes the production of 1 egg and 3 polar bodies _____________________49. A zygote forms when a sperm joins with an egg. _____________________50. Cell divide by mitosis if identical copies of the parent cells are needed _____________________51. Meiosis can happen everywhere in males _____________________52. When two haploid cells join, they can make a diploid cell. _____________________53. Crossing-over happens at specific locations each time. _____________________54. The symbol for diploid is n _____________________55. Gametes are diploid