The cell cycle has
A. two phases, S (DNA replication) and M (mitosis, when the chromosome separates and the cytoplasm is divided)
B. three phases: G1 (the cell is growing and perparing to divide), S (DNA replication) and M (mitosis)
C. four phases: G1 (the cell is growing and preparing to divide), S (DNA replication), G2 (the cell puases and prepares for division) and M (mitosis).
D. three phases: S (DNA replication), M (separation of the copies of the replicated DNA) and C (cytokinesis, separation of the cytoplasm.
Answer: A