An experiment that uses the recombinant plasmid pX1108 to illustrate restriction mapping is described. The experiment involves three restriction enzymes and employs single and double restriction enzyme digestions. A list of needed materials, procedures, safety precautions, results, and discussion are included. (KR)

Described is an ongoing study of monozygotic and dizygotic twins, separated in infancy and reared apart. Discussed are the procedures and results of this study with interpretations of the results. The effects of parenting, education, and other interventions are considered. (CW)

Discussed are means of enhancing engineering education and the process of bridging the gap between industry and academe. The change in the corporate culture is described. Partnerships between schools and industry are advocated. (CW)

Discussed are the objectives, program development, program operation, seminar format, topics, faculty participation, attendance, and pitfalls and problems associated with this seminar series. A list of selected titles is provided. (CW)

Describes the Academic Excellence Workshops program at California State Polytechnic University, Pomona, as a potential model for an academic support system specifically designed for underrepresented students in math-based disciplines. (PR)

Offers three reasons to teach science to nonscientists--curiosity, technological bewilderment, and technological necessity, and offers some ideas on how courses addressed to these ideas ought to be taught. (PR)

Explains that trial and error learning is an important way for children and adults to learn. Open-ended activities have great opportunities for error and eventual feedback for error reduction. (PR)

Summarizes current information on the cell for the following topics: mitochondria from the male, moving cells, the cell cycle, the kinetics of kinetechore, nuclear structure, and sorting and secretion. (PR)

Describes an exercise that enlists students and teachers as local experts to predict the effect warmer temperatures will have on agro- and natural ecosystems with which they are familiar. Students will gain an understanding of the "greenhouse effect" and identify factors that determine which organisms occur naturally together. (PR)

Describes the Bajema strategy for teaching meiosis and how it is used in the general genetics course at Ball State University and can be used to identify students who have misconceptions of meiosis that can interfere with their learning the basics of Mendelian inheritance. (Contains 11 references.) (MDH)

Describes the set up, organization, structure, and evaluation of an interdisciplinary course on science, technology, and needs of society. (PR)

Describes an experiment where the gram-equivalent mass of an unknown metal is determined by reacting the metal with dilute hydrochloric acid and collecting the evolved gas over water. This simple, reliable experiment routinely gives results within 1% of the accepted value. (PR)

Asserts that field experiences cannot be replaced by a textbook or a computer program and discusses why field trips at the college level are in decline. (PR)

Nitrate assimilation by plants provides an excellent system for demonstrating control of gene expression in a eukaryotic organism. Describes an assay method that allows students to complete experiments designed around the measurement of nitrate reductase within a three-hour laboratory experiment. (PR)

Explains how sweet potato roots can be used for plant tissue culture for biology laboratory instruction. (PR)