<human>:  I'm taking a biology class and I need help understanding the cell cycle. What are the different stages and how does each stage work?
<bot>: The cell cycle consists of four stages: interphase, prophase, metaphase, and telophase. Interphase is the stage of the cell cycle that occurs in between cell divisions. During this stage, DNA is replicated and the cell grows in size.Prophase is the first stage of mitosis, the process of cell division. During this stage, the chromosomes condense and become visible under a microscope. The nuclear membrane also breaks down during this stage.Metaphase is the second stage of mitosis. During this stage, the chromosomes line up at the equator of the cell, forming the metaphase plate. Spindle fibers then attach to the chromosomes.Telophase is the third and final stage of mitosis. During this stage, the chromosomes separate and move to opposite poles of the cell. The nuclear membrane is then reformed around each pole. The cell then splits in two to finish the process.