cover image JACOB'S LADDER: The History of the Human Genome

JACOB'S LADDER: The History of the Human Genome

Henry Gee, . . Norton, $25.95 (288pp) ISBN 978-0-393-05083-7

So we've sequenced the human genome. Now what? Gee, a writer for Nature and former professor at UCLA, tackles this question in his examination of how nature generates "form from the formless." Gee takes his title seriously, describing not only the history of human understanding of biology, but also the history of the evolution of the genome itself. Stories of homunculi and Darwin's legendary journey to the Galápagos lead seamlessly into discussions of the first life to appear on earth. Gee uses comparative genomics to draw a vivid history of the evolution of life, tying together the usually distinct fields of embryology, genetics and evolution. The crowning gem of this work is the last section on the new network theory of genomics. Gee draws the reader into the new field of computational biology and shows that having the sequence of the human genome is just the beginning. By modeling how the thousands of genes act on and with each other, we can finally begin to answer questions like, where do new species come from? How does a single egg turn into a human baby? How does natural selection affect the genome? Why is there any variation at all? The author knows the details of molecular biology, and he's not afraid to use them. The text is littered with terms like "blastocyst," "T4 bacteriophage" and "Hox genes," though all are carefully defined. Because of this level of sophistication, this fine book is difficult enough to be more suitable for the amateur scientist than for the dabbler. 25 illus. not seen by PW . Agent, Jill Grinberg. (July)