Adaptive behavior in mentally retarded males with fragile X syndrome was longitudinally examined in 17 subjects, ages 1 to 17. Findings included relative strength in daily living skills and weakness in socialization only for older subjects, and significant declines in adaptive behavior scores from first to second testing for the older subjects.…

Described is the role of technology in the Human Genome Project. A poster of the human genome as is known in 1990 is provided with a list of representative genes and a glossary of terms. (CW)

Describes a computer program to teach the concepts that underpin genetic mapping using a three-point test cross. The program is used in a sophomore-level course for biology majors that presents a rigorous introduction to genetics. (PR)

Describes a simple and inexpensive, one-period activity to extract DNA to make the study of DNA less abstract. A microscope titration is used to determine when cells are ready for DNA extraction. (PR)

Presents a chromosome map for 19 known chromosomes in human genetics. Describes the characteristics attributed to the genetic codes for each of the chromosomes and discusses the teaching applications of the chromosome map. (MDH)

Examined influences on children's behavior problems in households defined by marital status and sibling relatedness. Found that genetic influences accounted for 81 to 94 percent of mean-level difference in behavior problems between two-parent/full sibling, and the mother-only/half sibling groups. Shared environmental influences accounted for 67 to…

The six articles of this theme issue relate the history of empirical research in education to its sociohistorical background, examining the proposition that the rise of empirical research in education was linked to complex factors such as the rise of positivism in the 19th century or the institutional growth of an educational market. (SLD)

Explores the ties between international environmental law and biochemistry with respect to genetically modified organisms, biodiversity, marine pollution, cancer biology, and pesticide contamination of food. Contains 30 references. (DDR)

Reports on a student's research project on the degree of genetic diversity within the trout lily species. Enables a rough prediction of the continuance of the species and provides insight into how to manage plants that might be endangered. Contains 16 references. (DDR)

A microarray experiment is presented that, in six laboratory sessions, takes undergraduate students from the tissue sample right through to data analysis. The model chosen, the murine erythroleukemia cell line, can be easily cultured in sufficient quantities for class use. Large changes in gene expression can be induced in these cells by…

The purpose of this study is to contribute to a theoretical knowledge base through research by examining factors salient to science education reform and practice in the context of socioscientific issues. The study explores how individuals negotiate and resolve genetic engineering dilemmas. A qualitative approach was used to examine patterns of…

This article describes an innovative lesson that uses the biography "Barbara McClintock: Alone in her Field" (Heiligman, 1994) to integrate genetics, literature, and mathematics as a context for students to investigate patterns on Indian corn. This two-day lesson requires students to estimate, collect data, identify and describe patterns,…

This article discusses "Family Secrets," a problem-based learning (PBL) curriculum module that focuses on the bioethical implications of genetic testing. In high school biology classrooms throughout New York State, students are using "Family Secrets" to learn about DNA testing; Huntington's disease (HD); and the ethical, legal,…

The desire to observe and understand the natural world is strong in young children, but high school students often consider science irrelevant to their daily lives. Therefore, as teachers of older age groups, the authors constantly struggle to engage students in scientific exploration so they can master concepts and appreciate the nature of…

Prosocial behavior is important for the functioning of society. This study investigates the extent to which environment shared by family members, nonshared environment, and genetics account for children's prosocial behavior. The prosocial behavior of twins (9,424 pairs) was rated by their parents at the ages of 2, 3, 4, and 7 and by their teachers…