Human Genetics As a Bridging Science

Abstract

The history of the biological sciences since 1900 shows that genetic theory has to act as a unifying principle bringing together various, and sometimes quite different, fields in the analysis of common problems. This historical process can be studied especially well in the development of human genetics – a branch of science that, mainly through hybridisation, first with biochemistry, then with cytogenetics, and recently with molecular biology, developed from an outsider's hobby into one of the most challenging fields of biological and medical research. Concepts and approaches derived from genetic theory are now influencing and, in part, determining the structure of an increasing number of scientific specialities – especially in medicine – leading to important practical applications. Genetic theory and methods might also become increasingly useful for analysis of brain function in relation to behaviour.