Book excerpt: Enzymes are indispensable tools in recombinant DNA technology and genetic engineering. This book not only provides information for enzymologists, but does so in a manner that will also aid nonenymologists in making proper use of these biocatalysts in their research. The Enzymology Primer for Recombinant DNA Technology includes information not usually found in the brief descriptions given in most books on recombinant DNA methodology and gene cloning. - Provides essential basics as well as up-to-date information on enzymes most commonly used in recombinant DNA technology - Presents information in an easily accessible format to serve as a quick reference source - Leads to a better understanding of the role of biocatalysts in recombinant DNA techniques