1. Genetics as a Science -- Corn and Wheat: Birth of Civilization and Genetics -- Gregor Mendel and Genetics -- Important Genetic Terms -- Thomas Hunt Morgan and the Fly Lab -- Is Inheritance as Simple as Mendel Suggested? -- Incomplete Dominance -- Multiple-Allele Systems -- Gene Interactions -- 2. DNA as the Hereditary Molecule -- Griffith and the Transformation of DNA -- Avery and the Transforming Principle -- DNA or Protein? The Hershey-Chase Experiments -- Structure of DNA -- Chargaff and Complementation -- Wilkins, Franklin, and DNA Crystals -- Pauling and Proteins -- Watson and Crick Unveil the Double Helix -- Meselson, Stahl, and DNA Replication -- DNA versus RNA -- 3. Genetics at the Molecular Level -- Molecular Mechanism of DNA Replication -- One-Gene, One-Enzyme -- Structure of a Gene -- Transcription -- RNA Editing -- Genetic Code -- Protein Structure -- Turning Genes On and Off -- 4. Studying the Gene -- Restriction Endonucleases -- Gel Electrophoresis -- Cloning -- Polymerase Chain Reaction (PCR) -- DNA Libraries -- Southern Blotting -- DNA Sequencing -- DNA Microarrays -- Molecular Markers -- Genetic Maps -- 5. Changes to the Genetic Material -- Chromosome Structure -- Observing Chromosomes -- Changes in Chromosome Structure -- Changes in Chromosome Number -- Types of Mutations -- Agents of Mutation -- Transposons-The "Jumping Genes" -- 6. Manipulating the Gene and Genome -- Recombinant DNA -- Transgenic Plants and Genetically Modified Organisms (GMOs) -- Gene Therapy -- Knock-Out Mouse -- RNA Interference -- Site-Directed Mutagenesis -- 7. Applications of Genetics -- Population Genetics -- DNA Fingerprinting -- Cancer Genetics -- Behavioral Genetics -- Quantitative Genetics -- Genetics of Complex Diseases -- Schizophrenia -- Narcolepsy -- Diabetes -- Retinitis Pigmentosa -- Print -- Web.

A genetics overview containing an introduction to the field; articles on topics such as DNA, RNA editing, the genetic code, chromosome structure, gene therapy, and mutations; information on genetics innovations; a glossary; and an annotated list of resources.