Although the various stages of interphase are not usually morphologically distinguishable, each phase of the cell cycle has a distinct set of specialized biochemical processes that prepare the cell for initiation of cell division.
雖然間期的各個階段通常在形態學上不可區分，但細胞週期的每個階段都有一組不同的特化生物化學過程，為細胞分裂的起始做準備。