Key points are not available for this paper at this time.
Biogenesis and evolution are viewed from the perspective of the universality of the metabolic chart with respect to primary metabolism and the phylogenetic specificity of secondary metabolism. This analysis is developed within the context of the evolution of the universal ancestor through hierarchical networks of chemical reactions. © 1999 John Wiley & Sons, Inc.
Harold J. Morowitz (Thu,) studied this question.