1. 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 DNA Know your chromosome Cell Cycle Name that phase Cell Cycle again

2. DNA is found ?

3. In the nucleus

4. What are the smaller units of DNA?

5. Nucleotides

6. What are the 3 parts of a nucleotide

7. Deoxyribose sugar, phosphate group and nitrogen base (ATG or C)

8. DNA replication proceeds in ___ direction/s?

9. TWO

10. Describe DNA replication

11. DNA replication occurs when the enzymes unzip the DNA molecule and DNA Polymerase helps to place nucleotides to form complimentary copy of the existing DNA. 2 identical copies are produced.

12. Each replicated chromosome consists of 2 ?

13. Sister Chromatids

14. ______ connect sister chromatids.

15. Centromere

16. Chromosomes contain proteins called ___

17. Histones

18. Cells chromesomes copy during__?

19. S phase.

20. First phase in which the chromosomes become visible.

21. Prophase

22. Longest phase of the Cell Cycle?

23. Interphase

24. What are the 3 phases of Interphase?

25. G1,S, G2

26. What divides during mitosis?

27. nucleus

28. What is cytokinesis?

29. Separation of the cytoplasm.

30. Describe what happens at each phase of the cell cycle

31. G1-growth, S-DNA replication,G2 prep for mitosis, Prophase-Chromatin condenses, spindle fibers form, Centrioles separate, Nuclear memebrane breaks down, Metaphase-chromosomes align in the middle of the cell. Anaphase-chromosomes move away from the center. Telophase-new membranes form.

32. A series of events that cells go through as they grow and divide

33. Cell cycle

35. Anaphase

37. Prophase

39. Interphase

41. Telophase

43. Metaphase

44. What is the role of cyclins?

45. Regulate cell growth

46. What should happen when cells come in contact with other cells

47. They should stop growing

48. A disorder in which some cells have lost the ability to control their growth

49. Cancer

50. Cancer cell form masses of cells called

51. tumor

52. A parent cell having 4 chromosomes will produce two daughter cells that contain two daughter cells each containing__ chromosome

53. 4

54. What is one structure used in mitosis that is found in animal cells and not plant cells.

55. centrioles