1. What are the two main phases of the cell cycle?
Interphase & Mitotic Phase

2. Identify the structure:
Centromere

3. Division of the cytoplasm
What is cytokinesis?
Division of the cytoplasm

4. What do spindle fibers do?
Help to separate chromosomes

5. What are the three phases of interphase?
G1, S Phase, G2

6. Name the phase:
Metaphase

7. What happens during G1 Phase?
The cell grows

8. Name the phase & describe.
M Phase—cell division

9. During which phase is the DNA replicated?
S Phase

10. Name the phase:
Anaphase

11. What are the two parts of M Phase?
Mitosis & Cytokinesis

12. Identify the structure:
Centrioles

13. What specifically IS mitosis?
Division of the nucleus

14. Name the phase & describe.
G1—the cell grows

15. What are the four phases of mitosis…IN ORDER?
Prophase-Metaphase-
-Anaphase-Telophase

16. Name the phase:
Telophase

17. What are the functions of mitosis? (i.e.—why does it take place?)
Growth, repair, replace

18. Name the phase:
Metaphase I

19. A difference between cell division in animal and plant cells is that plant cells have what?
A cell plate

20. Name the phase:
Prophase

21. 2 Identical cells that are 2N
The process of cell division begins with a cell that is 2N…what do you have at the end?
2 Identical cells that are 2N

22. Name the phase:
Anaphase II

23. Identify the structure:
Sister chromatid

24. Chromosome number is represented by what symbol?

25. What is the arrow pointing to?
Cleavage furrow

26. Name the phase:
Cytokinesis II

27. What is a gamete?
A sex cell

28. What does this picture show?
Crossing over

29. What is the division of gametes?
Meiosis

30. Name the structure:
Tetrad

31. Term to describe a cell that contains both sets of homologous chromosomes
Diploid

32. How many cells are there at the end of meiosis?4

33. How many chromosomes are there in a human cell?46

34. How many chromosomes are there in a human sperm or egg?23

35. Name the phase:
Anaphase I

36. At the end of meiosis are the cells haploid or diploid?

37. If an organism’s diploid number is 12, what is its haploid number?6

38. What gamete is produced by males? How many are produced during meiosis?
Sperm, 4

39. If an organism’s haploid number is 12, what is its diploid number?24

40. Egg, 1 (the other 3 are polar bodies)
What gamete is produced by females? How many are produced during meiosis?
Egg, 1
(the other 3 are polar bodies)

41. Why is meiosis called a reduction division?
The number of chromosomes is cut in half
(diploid haploid).

42. Explain the difference between cell division and mitosis.
Mitosis: splitting of nucleus
Cell division: splitting of cell

43. What is the exchange of genetic material between homologous chromosomes?
Crossing-over

44. Name the phase & describe.
S Phase—DNA replicates

45. Name the phase & describe.
G2—the cell prepares for mitosis