Provides information about DNA, and explains how knowledge of DNA is being used in genetic engineering. Includes color illustrations and a glossary.

Nature's way -- Reading the manual. Protein factories -- Gene control -- The benefits of bacteria -- Inserting new genes. Chopping up DNA -- Split genes -- Hitting the target -- Turning to phages again -- Going multicellular. Nature's genetic engineer -- Designer plants -- Transgenic animals -- Transgenic applications -- Gene therapy. Stem cells -- Making clones -- A Genetic map. Genome challenges.