1. Cell Division:
Mitosis

3. How do you get from one cell to two identical cells?

4. Mitosis
Starting cell
Interphase
Prophase
Metaphase
Anaphase
Telophase

5. The cell grows bigger and a copy of each chromosome is made
Interphase
The cell grows bigger and a copy of
each chromosome is made

6. The chromosomes condense and the nucleus begins to disappear
Prophase
The chromosomes condense and the nucleus begins to disappear

7. The chromosomes line up in the middle
Metaphase
The chromosomes line up in the middle

8. Sister Chromatids are pulled apart to opposite sides of the cell
Anaphase
Sister Chromatids are pulled apart to opposite sides of the cell

9. Chromosomes begin to decondense and the nucleus begins to form
Telophase
Chromosomes begin to decondense and the nucleus begins to form

10. The cytoplasms separate, resulting in two identical diploid cells
Cytokinesis
The cytoplasms separate, resulting in two identical diploid cells

11. Mitosis
Starting cell
Interphase
Prophase
Metaphase
Anaphase
Telophase

12. The purpose of mitosis is

15. Draw your own steps of mitosis for this cell
Draw your own steps of mitosis for this cell. You do not need to label or describe it, just draw what this cell would look like at each step.

16. Meiosis

18. What’s the point of meiosis. What’s made at the end of meiosis
What’s the point of meiosis? What’s made at the end of meiosis? Are the cells at the end of meiosis haploid or diploid?

19. Sperm (Haploid)
Egg (Haploid)
Zygote (Diploid)

20. How do you get from 1 diploid cell to 4 haploid cells?

21. Meiosis Starting cell Interphase Metaphase I Anaphase I Telophase I
Prophase I
Prophase II
Metaphase II
Anaphase II
Telophase II

22. Sperm
Egg

23. Mitosis
Starting cell
Interphase
Prophase
Metaphase
Anaphase
Telophase

24. Meiosis Starting cell Interphase Metaphase I Anaphase I Telophase I
Prophase I
Prophase II
Metaphase II
Anaphase II
Telophase II

25. Laws of Meiosis
Law of Segregation: Homologous chromosome pairs must separate during meiosis

26. The cell grows bigger and a copy of each chromosome is made
Interphase
The cell grows bigger and a copy of
each chromosome is made

27. Chromosomes condense and crossing-over
Prophase I
Chromosomes condense and crossing-over
occurs

28. The homologous pairs line up in the middle
Metaphase I
The homologous pairs line up in the middle

29. The homologous pairs are pulled away to opposite sides
Anaphase I
The homologous pairs are pulled away to opposite sides

30. Telophase I
Cell has split in two

31. BIG IDEA!!!
What is the goal/point of the 1st 4 phases of meiosis?

32. Meiosis Starting cell Interphase Metaphase I Anaphase I Telophase I
Prophase I
Prophase II
Metaphase II
Anaphase II
Telophase II

33. New spindle fibers begin to form
Prophase II
New spindle fibers begin to form

34. Chromosomes line up in the middle
Metaphase II
Chromosomes line up in the middle

35. Sister chromatids are pulled apart
Anaphase II
Sister chromatids are pulled apart

36. Each cell separates leaving 4 unidentical haploid cells
Telophase II
Each cell separates leaving 4 unidentical haploid cells

37. Meiosis Starting cell Interphase Metaphase I Anaphase I Telophase I
Prophase I
Prophase II
Metaphase II
Anaphase II
Telophase II

38. BIG IDEA!!!
What is the point/goal of the 2nd 4 phases of meiosis?

39. BIG IDEA!!!
What’s the point of meiosis? What’s made at the end of meiosis? Are the cells at the end of meiosis haploid or diploid?