Twenty-three papers review recent advances in experimental studies on microorganisms, plants and animals. They are taken from a symposium organized at Cologne University, in April 1983 by the Committee on Genetic Experimentation (COGENE), a scientific committee of the International Council of Scientific Unions.

Twenty-three papers review recent advances in experimental studies on microorganisms, plants and animals. They are taken from a symposium organized at Cologne University, in April 1983 by the Committee on Genetic Experimentation (COGENE), a scientific committee of the International Council of Scientific Unions.