bserved when overcrowded cells stop dividing. ??? ??? ??? G??? phase (gap 0 phase) The nondividing state a cell will enter if it does not receive sufficient feedback to pass the G??? restriction point. * Most cells in an adult human are in this phase. ??? ??? ??? G??? phase (gap 1 phase) The first stage of the cell cycle following division, during which the cell metabolizes and grows. * DNA presen