Explains an algorithm which details procedures for solving a broad class of genetics problems common to pre-college biology. Several flow charts (developed from the algorithm) are given with sample questions and suggestions for student use. Conclusions are based on the authors' research (which includes student interviews and textbook analyses).…

Highlights five major analytical areas (electrophoresis, immunoassay, chromatographic separations, protein and DNA sequencing, and molecular structures determination) and discusses how analytical chemistry could further improve these techniques and thereby have a major impact on biotechnology. (JN)

Reviews current research on a woman's chances of bearing twins and the genetic relationship, prenatal competition, and personality similarities between twins. In addition, the nature/nurture controversy is discussed in terms of evidence from studies of identical twins reared apart. Future studies are suggested to discover the ways twinning might…

Explored origins of individual differences in infant shyness by studying its relationship to parental shyness, sociability, and introversion-extraversion. Full adoption design examined role of both genetic and family environmental influences as possible etiological factors in development of infant shyness. Results indicate genetic influences and…

Analyzes associations among different role operators quantitatively by taking input strings from 200 abstracts, each related to subject fields of taxation, genetic psychology, and Shakespearean drama, and subjecting them to the Chi-square test. Significant associations by other differencing operators and connectives are discussed. A schema of role…

Examines heterologous expression in Escherichia coli and the role of regulatory sequences which control gene expression at transcription resulting in abundant production of messenger RNA and regulatory sequences in mRNA which promote efficient translation. Also examines the role of E. coli cells in stabilizing mRNA and protein that is…

Factors influencing birth defects include maternal age (teenagers and women over 32 are at risk), genetics, drug use, diet habits, and environmental hazards. The physical, social, and economic costs of birth defects are extreme. Prevention must involve efforts to change some of these factors. (Author/CS)

Challenges the axiom that unalloyed benefits accrue to society by virtue of untrammeled scientific inquiry and technological advance. Discusses examples of challenges from within and without the scientific community in matters of atomic energy, space exploration, genetic engineering, and inquiry into racial and ethnic differences in intelligence.…

Describes a field exercise which links ecology and taxonomy in the teaching of the species concept. Two common hedgerow plants (red and white campions) are used as a pair of "species" that are normally distinct. Plants of intermediate character can be encountered, and the status of these plants is investigated. (Author/JN)

Reviews the conventional interpretation of the etiology of Down syndrome, summarizing recent data that do not support this interpretation. Also surveys the way in which clinical, cytogenic, and statistical findings related to the syndrome are presented in 27 major genetics textbooks published since 1975. (Author/JN)

A major and well-recognized difficulty in estimating the effects of education on earnings is that the more educated are likely to be more able, irrespective of education. This problem is studied using data on identical twins to control for differences in ability that arise from genetic endowments and family environment. (WL)

A review of data on parent-offspring resemblances in intelligence is presented in the context of correlation, regression and variance predictions from the polygenic model and an environmental model. (Editor)

Presents an overview of the contributors' reactions and summarizes the controversies which arose from the 1975 APA presidential address. Thoughts on behaviorism as well as evolutionary theory in American psychology are also presented. (Author/AM)

The GenScope Assessment Project is studying assessment in the context of a month-long computer-supported learning environment for introductory genetics. Across three annual iterations with multiple teachers, project researchers manipulated the materials, incentives, and contexts in which students were invited to use formative feedback on…