The correct order for the phases of the cell cycle is d) G1, S, G2, and M.
The cell cycle consists of a series of stages that a cell goes through as it grows and divides. The stages include:
- G1 phase (Gap 1): This is the first phase where the cell grows and prepares for DNA replication.
- S phase (Synthesis): During this phase, the cell replicates its DNA, so each chromosome consists of two sister chromatids.
- G2 phase (Gap 2): In this phase, the cell continues to grow and prepares for division. It checks for any errors in DNA replication and makes any necessary repairs.
- M phase (Mitosis): This is the phase where cell division occurs, resulting in two daughter cells.
Thus, the correct sequence reflects the logical progression of the cell preparing for and undergoing division.