Mitosis & Meiosis
 PPT Questions

1.   From where do new cells arise?   

 

2.   Why does the body constantly make new cells?   

 

3.   Is cell division the same in all cells?  Explain. 

  

4.   Why must each new cell get a complete copy of the original cellís DNA?   

 

5.   Copying DNA is known as ____________________. 

6.   The original cell that divides is called the _____________ cell, while the two, new identical cells are called ______________ cells.

 Chromosomes

7.   Describe the chromosome of a prokaryote like a bacterial cell.   

 

8.   About how many chromosomes are in the body cell of eukaryotes?   

9.   How many chromosomes are in a human body cell?   

10. What makes up each chromosome?   

 

11. Chromosomes can only be seen when a cell is __________________. 

12. Uncoiled chromosomes are called ____________________. 

13. DNA tightly coils by wrapping around what kind of proteins?   

14. What are duplicated (doubled) chromosomes called?   

15. What holds chromatids together?   

16. Sketch & label all parts of sister chromatids.   

 

 

 

17. What is a karyotype?   

 

18. Where are autosomes found on a karyotype?   

19. Where are sex chromosomes found on a karyotype?   

20. What is the genotype for males?        For females?   

21. The presence of which chromosome determines the sex of the child?   

 

Cell Reproduction

22. What is asexual reproduction?    

 

23. Give 2 examples of asexual reproduction.

      a.

      b.

 

24. What is sexual reproduction and give an example?    

25. Which process produces identical new cells --- mitosis, meiosis, or both?   

Prokaryotic Cell Division

26. Name a prokaryote that reproduces by binary fission.  

27. Sketch and explain how binary fission occurs in a bacterial cells.   

 

 

 

 

28. What forms to divide the 2 new bacterial cells?   

 

Cell Cycle

29. Name the 5 phases of the cell cycle.   

 

30. What is the longest phase of the cell cycle?                       the shortest phase? 

31. Which phase has 3 stages & name them?   

 

32. Which phase has 4 stages & name them?   

 

33. Describe what occurs in the G1 stage of interphase.   

 

34. When is DNA copied?   

35. How do the new copies of DNA compare to the original DNA?   

36. What does a cell make during the G2 stage right before mitosis?   

 

37. Name a structure needed for cell division that is made during the G2 stage.  In what type of cell is this organelle found?   

 

38. Can the nucleus and nucleolus be seen during interphase?   

39. Sketch & label all parts of the cell cycle.   

 

 

 

 

 

 

 

Mitosis

40. What part of a cell actually divides during mitosis?   

41. Give another name for mitosis.   

42. In which type of cell does mitosis occur --- prokaryote or eukaryote? Explain why. 

  

43. Name a type of cell that doesnít undergo mitosis.   

44. Name, in order, the four stages of mitosis.   

 

45. Name 2 things that happen to a cell during Early Prophase.   

      a.

 

      b.

46. What happens to the nucleus & nucleolus during prophase?

 

 

47. Why do chromosomes become visible during prophase?   

 

48. What are kinetochores?   

 

49. Where do kinetochore fibers attach to a chromosome?   

50. What finishes forming by the end of Late Prophase?   

 

51. Sketch and label a kinetochore fiber attached to a chromosome.   

 

 

 

 

 

 

 

 

52. From what does the spindle form in plants?             in animals?   

53. What are polar fibers? Do they attach to chromosomes?   

 

54. What are asters & where are they in a cell?   

 

55. Where are the poles of a cell?      the equator of a cell?   

 

56. Sketch & label the parts of a spindle.   

 

 

 

 

 

57. What happens to chromosomes during metaphase?   

 

58. During metaphase, where do chromosomes line up & what MOVES them there?   

 

59. Which mitotic phase occurs rapidly?   

60. What happens to sister chromatids during anaphase?   

 

61. What pulls sister chromatids apart during anaphase?   

62. Where are chromatids located during telophase?   

63. What disassembles in telophase?   

64. What reforms around each set of sister chromatids during telophase?   

65. What organelle reappears inside the nucleus?   

66. During telophase as the chromosomes uncoil, they reappear as ____________________. 

67. What process or phase follows telophase?