1. 1 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Chapter 25 Image Slides

2. 2 LEARNING OUTCOMES 25.1 DNA Structure Summarize the experiments that enabled scientists to determine that DNA made up the genetic material. Describe the structure of a DNA molecule. 25.2 DNA Replication Explain why DNA replication is semiconservative. Summarize the events that occur during the process of DNA replication.

3. 3 LEARNING OUTCOMES 25.3 Gene Expression Describe the role of RNA molecules in gene expression. Summarize the sequence of events that occurs during gene expression. Determine the sequence of amino acids in a peptide, given the messenger RNA sequence. Explain the purpose of mRNA processing. 25.4 Control of Gene Expression Describe the relationship between gene regulation and gene activity in a cell. Compare regulation in prokaryotes to regulation in eukaryotes. Discuss the many ways genes are regulated in eukaryotes. 25.5 Gene Mutations and Cancer Summarize the causes of gene mutations. Describe why cancer is a failure of genetic control. Describe the characteristics of cancer cells.

4. 4 Co 25

5. 5 Fig. 25.3

6. 6 Fig. 25A

7. 7 Fig. 25.4

8. 8 Fig. 25.5

9. 9 Table 25.1

10. 10 Fig. 25.6

11. 11 Fig. 25.7

12. 12 Fig. 25.8

13. 13 Fig. 25.9

14. 14 Fig. 25.10

15. 15 Fig. 25.11

16. 16 Fig. 25.12

17. 17 Fig. 25.13

18. 18 Fig. 25.14

19. 19 Fig. 25.15

20. 20 Fig. 25.17

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22. 22 Fig. 25.18

23. 23 Fig. 25.20

24. 24 Fig. 25.21

25. 25 Fig. 25.22

26. 26 Fig. 25.23

27. 27 Fig. 25B