A long look at the techniques and applications of gene-splicing. The development of recombinant DNA promises to change our lives even more than the upcoming superconductor revolution. Gross describes in some detail how genes are being tailored to turn various microbes into chemical factories for industry and medicine, and also how scientists intend to change plants and animals that we use for food. In general terms, she describes the highly competitive business of biotechnology--and the possible dangers of all this tinkering. The many photos (mostly in color) are divided among filler, little blobs seen through a microscope, and shots of high-tech labs; the several diagrams do a better job of summarizing and clarifying the text. The Stwertkas' Genetic Engineering (1982) explores the ethical questions more completely, if stolidly, and isn't dated enough to need replacement. An additional purchase on an important topic.