Describes the National Institute of Health's GenBank DNA sequence database and how it can be accessed through the Internet. A real reference question, which was answered successfully using the database, is reproduced to illustrate and elaborate on the potential of the Internet for information retrieval. (10 references) (KRN)

A man with mental retardation, in detention for five years because of sex offenses with preadolescent boys, was not only diagnosed as having Klinefelter syndrome when a social worker read suspected the possibility and arranged for a chromosome test. The importance of a complete medical work-up is emphasized in such cases. (JDD)

Compares the reading ability of children with dyslexic parents and/or older siblings to children with no family incidence of dyslexia. Finds that many children from dyslexic families developed reading problems by the end of second grade. Discusses implications of the results for etiological theories of dyslexia. (RS)

This laboratory provides an easy and rapid way to introduce students to some of the exciting principles of gene regulation by analyzing expression of the lac operon of Escherichia coli. (PR)

Describes a simulation exercise involving an imaginary organism in which students study the effect of predation on allele frequencies, examine the assumptions of the Hardy-Weinberg law, and consider whether the need to survive is a guiding force in evolution. Includes instruction for conducting the exercise. (MDH)

Explains how fur color in domestic cats can be used as the basis of a science laboratory activity to teach the Castle-Hardy-Weinberg Law. (PR)

Presents an exercise that describes the direct extraction and purification of DNA from a small soil sample. Also discusses the subsequent amplification of a 343-bp Tn7 transposate A gene fragment (tnsA) from a strain of Pseudomonas aureofaciens 3732RNL11. Contains 21 references. (DDR)

Describes a project that began as workshops for teachers in biotechnology and became a program that enables students to do hands-on biotechnology experiments in the classroom. The three parts of this program include the development of activities, access to equipment, and further workshops. (DDR)

Uses the theme of murder in current fiction and nonfiction to increase nonmajor students' understanding of scientific concepts, elevate their interest in science, model science as a process, and demonstrate the relevance of science to everyday life. (DDR)

Analyzes middle school students' interests in biology to provide information on instructional strategies and curriculum development in Korea. Reports that the highest interest domains are genetics and microscope observations. Contains 16 references. (DDR)

Argues against the presence of dysgenic trends for IQ on the basis of absence of change in the differences between various groups. Illustrates this with an example of the numbers of children born to Black and to White women at different educational levels. Discusses the effects, mechanisms, and implications of dysgenesis for IQ. (MMU)

Presents arguments for and against the theory and practice of genetic engineering. Considers the food labeling controversy and general ethical issues related to genetic engineering. (Author/WRM)

Investigated genetic and environmental contributions to relationship between family and school environment and depressed mood; also potential sex differences in genetic and environment contributions to variation in and covariation between family connectedness, school connectedness, and depressed mood. Subjects were 2,302 adolescent sibling pairs.…

Redefines "Jensenism" in terms of the personal qualities and beliefs that have made Jensen a researcher of note, including tackling controversial topics with empiricism. Illustrates these aspects of "Jensenism" by recounting personal experiences with Jensen and his research. (SLD)

In addition to establishing the relationship between reaction time (RT) and intelligence, Jensen has explored the role of intraindividual variability and its genetic basis. Jensen's theories blend facts from behavioral research on RT with neurological events. (Author/SLD)