Developmental Biology

The fifth edition adds the ecological dimension to its integration of molecular, cellular, and organismal approaches, with a new chapter concerning the ways by which the environment effects the phenotype of the organism. Other changes which reflect developments in the field include an earlier, more complete introduction to gene activity and signal transduction pathways, and new emphasis on the roles of paracrine factors in development--part five begins with an overview of the fibroblast growth factor TGF-beta, Wnt, and Hedgehog families of growth and differentiation factors. Annotation copyrighted by Book News, Inc., Portland, OR