A biologist observes a skin cell as it progresses through the cell cycle. She notes the following activities at different times:
- The cell synthesizes new proteins and increases in size.
- The cell replicates its DNA.
- The cell continues to grow and produces additional organelles.
- The chromosomes condense and the nuclear envelope disassembles.
- The chromosomes line up at the equator of the spindle.
- The sister chromatids separate and move to opposite poles.
- Nuclear envelopes reform around the separated chromatids.
- The cytoplasm constricts, forming two daughter cells.
Outline the phases of the mitotic cell cycle in the order they occur, describing the main events of each phase.