Abstract
n this article the author develops a critique of reductionism in biological sciences from three different points of view. The first is related to the problem of reduction in the context of scientific theories. More specifically, reduction deals with a special form of intertheoretic relationship between molecular biology and the rest of biology. The second meaning of reductionism has to do with the significance of its genetic outfit for the ontogeny of an organism, i.e. its development from zygote to its final or adult structure and function. Third, closely related to this more biological topic are questions about the anthropological consequences of the application of reductionistic methodologies for the explanation and evaluation of human behaviour.