<Li> G (Gap 2), in which the cell resumes its growth in preparation for division . The mitochondria divide and the cell continues to grow until mitosis begins . In plants, chloroplasts also divide during G2 . </Li> <Li> In addition, some cells that do not divide often or ever, enter a stage called G (Gap zero), which is either a stage separate from interphase or an extended G . </Li> <P> The duration of time spent in interphase and in each stage of interphase is variable and depends on both the type of cell and the species of organism it belongs to . Most cells of adult mammals spend about 20 hours in interphase; this accounts for about 90% of the total time involved in cell division . Interphase includes G1, S, and G2 phases . Mitosis and cytokinesis, however, are separate from interphase . </P> <P> When G is completed, the cell enters a relatively brief period of nuclear and cellular division, composed of mitosis and cytokinesis, respectively . After the successful completion of mitosis and cytokinesis, both resulting daughter cells re-enter G of interphase . </P>

What are visual clues that a cell is in interphase