Early mental development of twins and siblings is analyzed, from an evolutionary viewpoint and related to the interplay of genetic programing, maturational status, and environmental influence. (MP)

Examines the role of sociobiology in explaining human behavior. Recommends that sociobiologists consider both biogenetics (DNA and information coded in the genes) and noogenetics (process by which learned structures are transmitted from one generation to the next). (Author/DB)

Sociobiology, although in its formative stage, is the most promising paradigm for bridging the gap between biology and the social sciences. (Author/AM)

Chromosomal abnormalities, some appearing in a stepwise clonal evoluation, were found in five Down's syndrome patients (35 weeks to 12 years old), four with acute leukemia and one with abnormal regulation of leukopoiesis. (Author/SBH)

Presented is the prepared text of a public lecture given by the president of the National Academy of Sciences. Dr. Handler attempts to articulate the state of science today. He deals with such issues as nuclear power and genetic engineering. (MDR)

There is both intuitive and hard evidence which suggests that the quality of human learning has been shaped by evolution, biology, and genetics. Consideration of genetic argument applied to learning processes, however, leads to models of education more optimistic about the role of schooling than those derived from a genetic abilities-based theory.…

Guinea pigs are presented as versatile classroom animals. Suggestions for animal behavior and genetics studies are given. Also included is information concerning sex determination and the breeding of guinea pigs, and hints on keeping these animals in the classroom. References and illustrations complete the article. (MA)

This article discusses research into the question of whether the expectation of hereditary factors in man's unique form of communication is supported by any evidence. The research is divided into three broad categories, dealing with voice, with speech, and with language. (CFM)

The 10-year longitudinal case study describes the history, speech therapy program, and treatment results for an adult male with Wilson's disease, a genetically based metabolic progressive neurological disorder which includes severe speech problems. (DB)

Examines the interplay between genes and environment and argues that the development of much individual variation can be explained in terms of relatively simple forms of underlying regulation. Looks at "sensitive periods," during which variation is produced by experience received at a particular age. Includes a discussion of the…

Describes the nature and action of hematopoietic proteins which regulate the production of specific sets of blood cells. Discusses the production of these hematopoietins by recombinant-DNA methods in an effort to enable physicians to treat patients by eliciting production of specific types of blood cells. (CW)

A patent awarded to Harvard University for the genetic alteration of mice in cancer research is the first ever issued on an animal, at the same time that legislation putting a moratorium on animal patents is pending in Congress. (MSE)

Fifteen cognitive abilities tests of the Hawaii Family Study of Cognition were factor analyzed concerning between-family means and within-family differences, using 370 sibling pairs of Americans of European ancestry and 116 sibling pairs of Japanese ancestry. The similarity of between-family and within-family structures suggests that the genetic…

Reviews the history of the establishment of the concept of race. Traces the origins to the work of 17th- and 18th-century writers. Concludes that the notion of race became popular because it was associated with national identity and emerging ideas regarding evolution. (JDH)