What determines whether a cell stays in interphase or divides?

Whether a cell stays in interphase or divides is determined by proteins known as cyclin regulate the cell both internally and externally, when these proteins give the go ahead the cell begins to divide. I hope that this is the answer that you were looking for and it has helped you.

The main role of dna in the  cell is the long-term storage of information. it is often compared to a blueprint, since it contains the instructions to construct other components of the  cell, such as  proteins  and rna molecules.the main function of rna is to carry information of amino acid sequence from the genes to where  proteins  are assembled on  ribosomes  in the  cytoplasm. mark brainliest, my work is good.