The M phase consists of several stages, each with distinct events:
Prophase: Chromatin condenses into visible chromosomes, the nuclear envelope breaks down, and the mitotic spindle begins to form. Prometaphase: The nuclear envelope fragments, allowing spindle microtubules to attach to kinetochores on chromosomes. Metaphase: Chromosomes align at the metaphase plate, ensuring they are properly attached to spindle fibers from opposite poles. Anaphase: Sister chromatids are separated and pulled towards opposite poles of the cell. Telophase: Chromosomes reach the poles, decondense, and are enclosed by a reformed nuclear envelope.