Proposes a molecular mechanism for the coupling of phosphorylation to electron transport in both mitochondria and chloroplasts. Justifies the proposed reaction schemes in terms of thermodynamics and biochemical data. Suggests how areobic respiration could have evolved. (EB)

Summarizes events of a conference on evolutionary biology in Chicago entitled: "Macroevolution." Reviews the theory of modern synthesis, a term used to explain Darwinism in terms of population biology and genetics. Issues presented at the conference are discussed in detail. (CS)

Suggests that overproduction of offspring by early human populations would have tended to work to the selective disadvantage of the entire society. Decisions regarding population limitations have been highly personal ones based on the amount of short run effort that individuals were able and willing to invest in each child. (GS)

Comments on the personalities and viewpoints of Richard Leakey and Donald Johanson, paleoanthropologists who hold differing views on the origin of humans. Summarizes major paleoanthropological finds and suggests the use of radio-immunoassay techniques for untangling the human family tree. (JN)

Describes recent research by Edward Steele appearing to support the Lamarckian theory of inheritance. Steele suggests that a mutant somatic cell favored by the environment will undergo clonal expansion. Altered genetic materials from these cells is then picked up by C-type viruses and inserted into the germ line genome. (CS)

This study discusses the behavior of the females of the parasitic wasp Nasonia vitripennis, which adjust the sex ratio of their broods according to whether or not they are the first or second wasp to parasitize a host. The results provide a quantitative test of sex ratio theory. (Author/SA)

This article describes the history of the molecular revolution in biology and emphasizes its dependence on the emergence of bacterial genetics, the fusion of genetics and biochemistry, and the development of new techniques for studying macromolecules. (Author/SA)

Stresses the importance of investigating bacterial mechanisms to discover clues for a greater understanding of cells. Cites examples of study areas of biological significance which may reveal information about the evolution of prokaryotes and eukaryotes and lead to a comprehensive theory of cell biology. (RT)