Presented is an explanation of a non-Darwinian theory of evolution based on the premise that functional differences are the result of many small mutations such as the substitution of one amino acid for another in a large protein molecule. A brief overview of Darwinian evolution and other theories are presented. (EB)

Presents opposing philosophies relating to the nature of aggression in man. One position advocates that human aggression is the product of evolution and is inherited, while the other proposes a cultural pattern model of aggression and uses two empirical tests in an attempt to disprove the genetic model. (JR)

The hazards posed by new techniques of genetic manipulation have prompted scientists to regulate and in some cases restrict their own basic investigations. Describes some possible applications of the new techniques and outlines the established research guidelines. (GS)

Relates occurrences at the Asilomar conference that led to the drafting of guidelines for gene-transplant research. The guidelines allow some experiments, defer others until safer containment is available, and ban those considered highly dangerous. (GS)