What are the phases of mitosis?

The phases of mitosis are specifically defined as prophase, metaphase, anaphase, and telophase. Understanding this sequence is essential for comprehending how a cell divides and replicates its genetic material.

During prophase, the chromatin condenses into visible chromosomes, the nuclear envelope starts to break down, and the mitotic spindle begins to form. This is followed by metaphase, where chromosomes line up at the cell's equatorial plane, ensuring that they are correctly oriented for separation. Anaphase comes next, characterized by the separation of sister chromatids as they are pulled to opposite poles of the cell. Finally, telophase occurs, during which the chromosomes de-condense back into chromatin, the nuclear envelope re-forms around each set of chromosomes, and the cell prepares for division into two separate daughter cells.

Other choices include phases that are either outside of mitosis, such as interphase and cytokinesis, or do not align correctly with the established sequences of mitosis. Thus, recognizing the defined order of prophase, metaphase, anaphase, and telophase is crucial for a clear grasp of the mitotic process.