Interphase The cell spends most of its life in this phase. The DNA in chromosomes copies itself ready for mitosis. Prophase The DNA in chromosomes and their copies condenses to become more visible ...

Mitosis ends with telophase, or the stage at which the chromosomes reach the poles. The nuclear membrane then reforms, and the chromosomes begin to decondense into their interphase conformations.

This interactive activity will help you to see exactly what's happening inside the cell as it goes through the stages of mitosis. Interphase is the longest stage of the cell cycle. DNA replicates ...