1. Copyright © 2009 Pearson Education, Inc. Chapter 2 Mitosis and Meiosis Copyright © 2009 Pearson Education, Inc.

2. What do you remember about mitosis and meiosis?

3. Copyright © 2009 Pearson Education, Inc. Figure 2.3

4. Copyright © 2009 Pearson Education, Inc. Figure 2.4 Karyotype

5. Copyright © 2009 Pearson Education, Inc. Table 2.1

6. Copyright © 2009 Pearson Education, Inc. Cell Division Divided into two broad processes Karyokenesis – nuclear division Cytokenesis – cytoplasmic division

7. Copyright © 2009 Pearson Education, Inc. Figure 2.5 Cell Cycle

8. Copyright © 2009 Pearson Education, Inc. Figure 2.7a Interphase

9. Copyright © 2009 Pearson Education, Inc. Figure 2.7b Prophase

10. Copyright © 2009 Pearson Education, Inc. Figure 2.7c Prometaphase and Metaphase

11. Copyright © 2009 Pearson Education, Inc. Figure 2.7e Anaphase

12. Copyright © 2009 Pearson Education, Inc. Figure 2.7f Telophase

13. Copyright © 2009 Pearson Education, Inc. Meiosis Remember: Goal is to reduce the genetic material by ½ Evolutionarily, meiosis is important because it leads to genetic variation Random distribution of maternal and paternal chromosomes Crossing over during prophase I Random fertilization (not part of meiosis)

14. Copyright © 2009 Pearson Education, Inc. Figure 2.8

15. Copyright © 2009 Pearson Education, Inc. Figure 2.9 Prophase I

16. Copyright © 2009 Pearson Education, Inc. Figure 2.10

17. Copyright © 2009 Pearson Education, Inc. Figure 2.11 Spermatogenesis Vs. Oogenesis