Interaction between Cell Nucleus and Cytoplasm

Abstract

THE assumption has been made frequently that the genes exert their effects upon the cytoplasm during the 'resting' stage of the cell. This implies that nuclear end products of genie reactions can pass through the nuclear membrane or at least react with cytoplasmatic components at the nucleo cytoplasmatic interphase. However, no explicit demonstration of this assumption has been given as yet. On the other hand, it has been proposed, again without proof, that the genie end-products in the nucleus are released into the cytoplasm during the mitotic breakdown of the nuclear membrane only.