<P> The g phase, or Gap 1 phase, is the first of four phases of the cell cycle that takes place in eukaryotic cell division . In this part of interphase, the cell synthesizes mRNA and proteins in preparation for subsequent steps leading to mitosis . G phase ends when the cell moves into the S phase of interphase . </P> <P> G phase together with the S phase and G phase comprise the long growth period of the cell cycle called interphase that takes place before cell division in mitosis (M phase). </P>

During the gap 1 stage of the cell cycle a cell