An inversion polymorphism of the filamin and emerin genes at the tip of the long arm of the human X-chromosome serves as the basis of an investigative laboratory in which students learn something new about their own genomes. Long, nearly identical inverted repeats flanking the filamin and emerin genes illustrate how repetitive elements can lead to…

Francis Galton, Charles Darwin's cousin, had wide and varied interests. They ranged from exploration and travel writing to fingerprinting and the weather. After reading Darwin's "On the Origin of Species," Galton reached the conclusion that it should be possible to improve the human stock through selective breeding, as was the…

Science textbooks and classes mostly emphasize what are considered by today's standards the "right" or "correct" interpretations of particular phenomena or processes. When "incorrect" ideas of the past are mentioned at all, it is simply to point out their errors, with little attention as to why the ideas were put…

Mendel is an icon in the history of genetics and part of our common culture and modern biology instruction. The aim of this paper is to summarize the place of Mendel in the modern biology classroom. In the present article we will identify key issues that make Mendel relevant in the classroom today. First, we recount some of the historical…

Describes recent research by Edward Steele appearing to support the Lamarckian theory of inheritance. Steele suggests that a mutant somatic cell favored by the environment will undergo clonal expansion. Altered genetic materials from these cells is then picked up by C-type viruses and inserted into the germ line genome. (CS)

The author reviews research on the origins of life, beginning with Thales (636 B.C.), synthesized by C. Darwin in "The Origin of Species," continued by H. DeVries' mutation theory, and enhanced by the discovery in 1944 of DNA. For journal availability, see SO 505 260. (AV)

Reports on the development of a laboratory exercise that would allow students to explore the concept of genetic drift. Discusses the concept of genetic drift that is coincident with natural selection and that closely models the real world. (DDR)

Discusses some new evidence for evolution that might be useful in persuading students who question the scientific basis for evolution. Draws on findings from the fields of molecular biology and genetics. (DDR)

Describes the "special destiny-special faculty" paradigm that has dominated western thinking about the nature and origins of language and argues instead that language systems are like technologies and that language acquisition and use involves a range of capacities and skills, a view that could be called the "mosaic development…