Answer:
d. G1 → S → G2 → M.
Step-by-step explanation:
The eukaryotic cell cycle consists of several phases, each with specific activities and events. The correct order is as follows:
G1 phase (Gap 1 phase): This is the first growth phase where the cell grows, carries out its normal functions, and prepares for DNA replication.
S phase (Synthesis phase): During this phase, DNA replication occurs, resulting in the duplication of the cell's genetic material.
G2 phase (Gap 2 phase): In this phase, the cell continues to grow and prepares for cell division. It checks for DNA errors and ensures proper replication.
M phase (Mitosis phase): The M phase includes several stages such as prophase, metaphase, anaphase, and telophase, culminating in cell division (cytokinesis) where two daughter cells are formed.
Therefore, the correct order is G1 → S → G2 → M.