Evolutionary role of the nucleus

Communication is of great importance in cells: it is matter of survival. Cells communicate each other in many ways. Inside the cell, the information proceeds through the form of signal transduction pathways. We consider a possible role of the nucleus in the regulation of the flow of information at the last step of signal transduction pathways. In particular, we evaluate the importance of clarity for the report about the environmental conditions and the relative response of cells using over-estimating and under-estimating probabilities concepts.