Interphase has one cell. Interphase is subdivided into the G1 phase, S phase and G2 phase. Interphase is the stage of a cell between two successive mitotic or meiotic divisions, which is also called interkinesis.
The G1 phase of interphase is known as gap one. The S phase is known as synthesis. The G2 phase is known as gap two. The G1 phase is a period of molecular synthesis when a newly formed cell turns on a variety of genes in its DNA to make protein. During the S phase, the chromatin, which is DNA and protein, becomes synthetically active. In the G2 phase, the cell prepares to divide. The cell does not divide until after the interphase is complete, which is why there is only one cell in the interphase.