Which option is NOT a phase of Mitosis?

In the context of cell division, Mitosis consists of a series of defined phases that include Prophase, Metaphase, Anaphase, and Telophase. Each of these stages plays a crucial role in ensuring that the replicated chromosomes are accurately divided and distributed into the two daughter cells.

Cytokinesis, while technically not part of Mitosis itself, often follows Telophase and completes the cell division process by physically separating the cytoplasm and other organelles into two distinct cells.

Meiosis, on the other hand, is a different type of cell division that occurs in the formation of gametes (sperm and eggs). It involves two rounds of cell division and results in four non-identical daughter cells, each with half the number of chromosomes of the original cell. Thus, Meiosis is fundamentally separate from the Mitosis process, making it the correct answer to the question regarding which is not a phase of Mitosis.