  Rosenberg discusses problems confronting the idea that DNA contains a genetic program for development. He starts with the question of whether the account of the early stages of pattern development, which he and Weber summarize (separately), can be elaborated to give the "whole story of development" (Rosenberg 2006, p.75). Will the whole story be macromolecular? He also points out that the explanation of pattern formation he describes is couched in terms of genes. He asks: will this explanation survive if the gene concept does not? But in the end, he expresses optimism in the grand idea that the explanation of initial pattern development can be elaborated to account for the entire process of development.