[Electron microscopic study of interphase in a culture of fibroblast-like cells]

The analysis of the ultrastructural changes of fibroblast-like cells of Chinese hamster at different periods of the cell cycle demonstrates that the most reliable morphological criteria for identification of different periods of the interphase are changes of the nuclear chromatin and nucleolus and the dynamics of development of the daughter centrioles. No prominent changes of the morphology of the protein-synthesizing apparatus during interphase were noted.