During which process does the cell nucleus divide as part of eukaryotic cell division?

The phase during which the cell nucleus divides in eukaryotic cell division is known as mitosis. This is a crucial process in which a single cell divides to produce two genetically identical daughter cells, each containing the same number of chromosomes as the parent nucleus. Mitosis consists of several stages, including prophase, metaphase, anaphase, and telophase, which collectively ensure accurate distribution of duplicated chromosomes.

In the context of eukaryotic cell division, mitosis serves functions such as growth, repair, and maintenance of tissues by allowing cells to divide and replenish those that have died or been damaged.

Meiosis, while also a form of cell division, specifically occurs in the production of gametes (sperm and eggs) and entails two rounds of division, resulting in four non-identical daughter cells. Transcription is a process related to gene expression where DNA is converted into RNA, and fermentation is a metabolic process for energy production under anaerobic conditions, neither of which involve nucleus division.