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Microbiology, Fifth Edition
Microbiology, 5/e
Lansing M Prescott, Augustana College
Donald A Klein, Colorado State University
John P Harley, Eastern Kentucky University

Genes: Structure, Replication, and Mutation

Web Exercises

1. How are new strands of DNA constructed by the cell? How does the final shape of the DNA molecule impart its function?
For a 3-D molecular view of DNA, visit http://www.biology.arizona.edu/biochemistry/activities/DNA/DNA_intro.html

2. View important events in the history of genetics at Picture It Biochemistry. Why have so many Nobel prizes been awarded to geneticists?

3. Look up variations on DNA structure by entering the terms "Z-DNA" and "B-DNA" into a search engine on the Web. Compare these forms of DNA with the one presented in this chapter.