Discusses the applicability and advantages of using yeasts as popular and ideal model systems for studying and understanding eukaryotic biology at the cellular and molecular levels. Cites experimental tractability and the cooperative tradition of the research community of yeast biologists as reasons for this success. (RT)

Summarizes the views of Ernst Mayr on the controversy over evolution which exists between physical scientists and biologists. Discusses the uniqueness of individuals, work by population geneticists and mathematical geneticists, complexity in nature, rates of change, modes of change, and the need to ask "why". (DC)

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)

Discusses the advantages of Xenopus laevis as an experimental animal in the study of embryogenesis in vertebrates. Summarizes the contributions of this system to the analysis of ribosomal and 5S RNA genes, and the diverse and highly productive applications of the oocyte injection technology. (RT)

Examines historically the attitudes of United States and British geneticists on the topic of race crossing. Between 1930 and 1950 the attitudes changed from a condemnation of wide race crosses because of deleterious effects to a belief that such inter-racial crosses were at worst biologically harmless. (JR)

Discusses insights discovered from research into human biology that are raising possibilities for therapy, prevention of disease, and challenges to society in the form of ethical decisions about the appropriate application of genetic information. (Author/RT)

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)

Discussed are some of the strategies required to try to detect and explain DNA markers that account for small amounts of behavioral variation. Situations in both animal and human behavior are described. The link between molecular biology and behavior is highlighted. (CW)

Discusses the problem of whether an explanation of the phenomena of life can be deduced from an exclusive reliance on causal relationship. Indicates that this exclusive reliance is not valid and adds the concept of anticipation. (GS)

Discusses the optimality of natural selection, ways of testing for optimum solutions to problems of time - or energy-allocation in nature, optimum patterns in spatial distribution and diet breadth, and how best to travel over a feeding area so that food intake is maximized. (JR)

Examines limitations of the heritability concept and heritability analysis, and discusses a conventional application of heritability analysis, IQ scores as measurements of a phenotypic character, the heritability of IQ, and the relationship of IQ and race. (JR)

Discusses the growth, development, and unusual parasitic nature of the retrovirus community. Reviews these infectious cancer-causing agents as models for the study of fundamental biological problems, tools for genetic manipulations, and problems posed by their pathogenic potential in humans and animal hosts where they cause diseases such as…

Summarizes the anatomical, physiological, and psychological evidence related to the primate visual system. States that comparison of perceptual abilities with the electrophysiological properties of neurons may help deduce functions of visual areas. (RT)