Interphase The stage in the CELL CYCLE when the nucleus is not in a state of division. Interphase is divisible into various stages each characterized by a differing physiological activity.

• 间期：是细胞周期的一个时期，在这个时期里细胞核不分裂。根据细胞生理活性差异可以把间期分成不同的阶段。