Analyzes student responses to an examination question requiring an understanding of the principles of genetic coding and suggests reasons for the misconceptions revealed. (AL)

In the article, Robert Lehrke responds to the criticism of the authors who criticized his paper, A Theory of X-Linkage of Major Intellectual Traits,'' appearing in the same journal. (CB)

Discusses the need for concurrent attention to methods of pest management when ecological changes consequent upon the introduction of new grains occur in large areas of the tropics. (AL)

Man can aspire to control his evolution and direct it towards goals which he finds good, salutary, worth living for....The one most 'natural' thing for man is to modify nature by means of his knowledge." (Author/AL)

Dairymen and 4-H'ers are learning together. The 4-H Dairy Genetics Project" was planned to give youth a genetics program and give the farmers a review of the true genetic makeup of their herds. (MR)

Three case studies of patients (relatives) suffering from a chromosomal aberration (translocation between one of the C group chromosomes and one of the G group chromosomes) resulting in severe mental retardation and skin malformations are reported. It was suggested that the anomaly is hereditary in nature (CD)

Describes somatic and genetic manipulations of individual genotypes, using diabetes control as an example of the first mode that is potentially realizable be derepression or viral transduction of genes. Advocates the use of genetic engineering of the second mode to remove man from his biological limitations, but offers maxims to ensure the…

This essay describes how Francis Crick, ex-physicist, entered the field of biology and discovered the structure of DNA. Emphasis is upon the double helix, the sequence hypothesis, the central dogma, and the genetic code. (VW)