What is the final phase of cell division where two nuclei are formed?

The final phase of cell division is telophase, during which the processes necessary to complete the division of the cell and form two daughter nuclei occur. During telophase, the chromosomes that have been separated during previous phases begin to de-condense back into chromatin, allowing the chromosomes to be less visible under a microscope. Each set of chromosomes reaches opposite poles of the cell, and the nuclear membranes start to reform around each set, resulting in the formation of two distinct nuclei.

Furthermore, telophase usually coincides with cytokinesis, where the cytoplasm divides, ultimately leading to the creation of two separate daughter cells. This makes telophase critical for ensuring that each daughter cell has the correct genetic material, as it provides a clear conclusion to the cellular division process.

The other phases do not complete the process of forming two nuclei. Prophase involves the condensing of chromosomes and the breakdown of the nuclear envelope, while metaphase is characterized by the alignment of chromosomes along the cell's equatorial plane. Anaphase features the separation of sister chromatids moving toward opposite poles. Therefore, it is telophase that signifies the formation of nuclei in each of the daughter cells after cell division.