Data on specific cognitive abilities for 86 children ages 6 to 12 from an allelic association study found three DNA markers significantly associated with specific cognitive ability scales after the effects of general intelligence were removed. These preliminary results support the hierarchical model predicted by genetic research. (SLD)

Examined data on cognitive ability of mono- and dizygotic twins who ranked in the bottom 10th percentile of cognitive ability at 14, 20, 24, and 36 months. Statistical analyses suggested that there is a genetic etiology in low cognitive ability groups and that the stability of low cognitive ability over time is due primarily to genetic factors.…

Points out the importance of awareness among biologists and biology teachers of the ethical and social implications of their work. Describes the bioethics module established at the University of Exeter mainly targeting students majoring in biology and science education. (Contains 18 references.) (Author/YDS)

Explores the evidence and reasoning behind the claims of biologists that variations in the genetic code are compatible with the claim of common ancestry. (Author/KHR)

Presents an alternative approach to teaching Mendelian genetics that includes the use of mathematical procedures and models to describe the occurrence and probabilities of heritable outcomes. Examples illustrate use of the method to calculate genotypic and phenotypic ratios for crosses involving multiple alleles with independent and dependent…

Discusses how technology educators can deal with advances in human genetics, specifically, cloning. Includes a definition and history of cloning, discusses its benefits, and looks at social concerns and arguments for and against human cloning. Includes classroom activities and websites. (Contains 10 references.) (JOW)

Argues that an understanding of the genetic and psychophysiological basis of crime and antisocial behavior has important implications for counselors dealing with antisocial behavior. Contends that psychophysiological factors interact with social factors in producing antisocial behaviors. (Author/ABL)

Discusses three approaches that are being developed to aid people with heredity and medical diseases: (1) Determination of DNA Abnormalities and Their Results; (2) Determination of Methods of Correction; and (3) Utilization of Chemical Treatment. (ZWH)

This article describes three advances in classical genetics: improved pedigree charting, use of a standard of reference, and calculation of probabilities in complex assortment. Provides support for the importance of teaching these methods in addition to new techniques. (LZ)

Advances in genetic science are discussed in relation to the advantages and disadvantages of the genetic testing of children and subsequent implications for the adoption process. (SW)

The new genetics presents exciting challenges to nursing. Nursing must come to terms with the ethical issues presented, implement appropriate curriculum changes, and seize opportunities to expand practice. (Author)

Reviews literature concerned with investigating psychiatric disturbances and genetic variables hypothesized as predisposing factors in etiology of anorexia nervosa. Gives particular emphasis to research which discusses association between anorexia nervosa and depression. Reviews psychopharmacological evidence and family genetics studies. Offers…

An analysis of views of early socialization and sociogenetic theorists will provide a foundation for regarding internalization as a process involving transformations of semiotic material imported from the social world into personally constructed subjective experience. Argues that researchers embracing the sociogenetic tradition should make…

Agrees with the distinction, made by Lawrence and Valsiner in the previous article, between theoretical approaches concerning internalization that view internalization as cultural transmission and internalization as constructive transformation. Concurs with criticisms of these approaches, and questions the need for the notion of internalization in…

Examines the role mistakes play in the molecular evolution of bacteria. Discusses the interacting physical, chemical, and biological factors that cause changes in DNA and play a role in prokaryotic evolution. (DDR)