Foreword / Arthur Komberg -- 1. Beginnings: Simplicity and Elegance, DNA and Protein -- 2. The Code for Life: DNA to Protein -- 3. Turning Genes On and Off: Genes that Control other Genes -- 4. Replicating the Genome -- 5. Making RNA from DNA -- 6. The RNA World: New Proteins and Revised RNAS -- 7. DNA on its own: Genetic Recombination -- 8. Regulating the Regulators: Developmental and Salvational Decisions -- 9. Making DNA from RNA: The Strange Life of the Retrovirus -- 10. Genetic Engineering: Genes and Proteins on Demand -- Afterword / Tom Cech