Final answer:
The formation of the mitotic spindle fibers does not occur during interphase but rather during the mitotic phase of the cell cycle. Therefore given statement is D
Step-by-step explanation:
The phase of the cell cycle that does NOT occur during interphase is the formation of the mitotic spindle fibers. Interphase is composed of three parts: G1 (growth and organelle replication), S (synthesis of DNA), and G2 (preparation for cell division). During the G1 phase, the cell grows rapidly while performing routine metabolic processes and begins to replicate organelles in preparation for cell division. The S phase is characterized by DNA replication to ensure each new cell has an identical set of genetic material. In the G2 phase, the cell continues to grow and makes proteins and organelles. However, the formation of mitotic spindle fibers occurs after interphase, during the mitotic phase of the cell cycle.