Progress in Theoretical Biology, Volume 5 covers the developments in theoretical biology. The book discusses the dynamic behaviors exhibited by cellular control circuits and the role of the cell as a morphogenetic and physiological unit; the stable dynamics of genetic networks; and the organization principles and models of the function of the simplest genetic systems controlling ontogenesis. The text also describes the conceptual framework shifts in immunogenetics: the anatomy of the Ag system; the basic problems of memory in behavioural and developmental biology; and the self-organization and performance of sensory-motor codes, maps, and plans. Physiologists, biophysicists, geneticists, mathematicians, and cytologists will find the book useful.