Review of literature concerning problem solving in genetics and Piagetian stage theory. Authors conclude the research suggests that formal-operational thought is not strictly required for the solution of the majority of classical genetics problems; however, some genetic concepts are difficult for concrete operational students to understand.…

Comparison of social choices of trisomic macaques and of control groups found that groups showed few differences in preferences for stimulus animals with and without disabilities. Results suggest that the avoidance of individuals with disabilities is not a general primate trait and the presence of mental retardation and physical handicaps need not…

The author recounts his experiences investigating alleged fraud by Cyril Burt (1976) in his work on the genetic foundations of human intelligence. The evidence fails to prove Burt guilty, and his assertions about the genetic factors of individual differences in intelligence are finding corroboration in contemporary psychology. (SLD)

The maladaptive behaviors, personality, and language skills of a male whose chromosome analysis showed evidence of mosaicism with karyotype 49,XXXXY and 48,XXXY are described. Research on severity of mental handicap with extra chromosomes, delayed speech development, and discrepancy between verbal and performance intelligence is examined. (JDD)

Examines existing data on biological diversity among Americans of African descent within the contexts of their evolutionary backgrounds and political and economic realities. Explores the origins of the diversity, and provides an evolutionary and political economy synthesis for evaluating the biological distinctions apparent among African…

The assumption that a singular biological resource pool embedded in the central nervous system results in differences in macrolevel outcomes because of the constraints it imposes on efficiencies of microlevel processing is refuted. Moderating effects on the causal pathways between microlevel and macrolevel performance are discussed. (SLD)

Discussed is the relationship of concept-mapping by students to the meaningful learning of genetics and ecological concepts. The implications of these results for teacher education in biology are addressed. (KR)

Describes a simulation exercise designed to illustrate the influence of founder effects, genetic drift, and gene flow. Also presents strategies for using cooperative learning in large lecture settings. (WRM)

Discusses current biological research related to plants, including rootless plants, cellulose synthesis, plant identification in forensic science, and plant chemistry. Contains 19 references. (WRM)

Outlines what developmentalists can do with genes associated with behavioral dimensions and disorders once they are found. Suggests that genes can be used to answer questions about developmental continuities, psychopathological patterns such as heterogeneity and comoribidty, and environmental-risk mechanisms informed by studies of gene/environment…

Developed a system for assessing students' reasoning proficiency in introductory genetics in the computer-supported environment GenScope (tm). Studied whether the assessment system helped students develop the understanding it was designed to assess. Results from 11 high school classes showing strong evidential validity and limited consequential…

A questionnaire was sent to counselors (N=32) to categorize the key points given in genetic counseling; to assess the amount and type of information recalled; and to examine the relationships between counselees' knowledge, satisfaction with information received, the meeting of expectations, concern, and anxiety. Results emphasize the importance of…

Introduces an activity on arthropod genetics that involves phenotype and genotype identification of the creature and the construction process. Includes a list of required materials and directions to build a model arthropod. (YDS)

Argues that Herrnstein and Murray's "The Bell Curve" (1994) merely restates the notion that intelligence can be reduced to a single ordinal measure, i.e., the primary factor for determining group or individual social-class status. Evidence from the biological sciences and quantitative genetics is presented that reveals that social…

Explains how to transfer a relevant written article into a learning activity involving active role play. Enables the development of critical thinking skills and helps to humanize science by highlighting its importance in everyday life. (DDR)