The Cell Cycle: Gene Enzyme Interactions presents the primary regulatory mechanisms of the cell cycle. This book provides theoretical and methodological discussions concerning cell cycles. Organized into 17 chapters, this book begins with an overview of cell evolution and thermodynamics. This text then examines the regulation of initiation of chromosome replication, and the coordination between this event and cell division, in Escherichia coli. Other chapters consider the operon model for the control of genetic expression in bacterial cells, which provides an understanding of the regulatory mechanisms of gene function. This book discusses as well the observations and experiments on the timing of events in the cell cycles of some bacteria and attempts to provide explanations in terms of established control systems. The final chapter deals with DNA markers, which serve as a convenient starting point for exploring the general principles of cell cycle markers. This book is a valuable resource for cell biologists.