Which part of the cell cycle includes both nuclear division and cytoplasm division?

The part of the cell cycle that includes both nuclear division and cytoplasm division is the M Phase, which stands for mitotic phase. During this phase, the cell undergoes mitosis, where the nucleus divides to form two nuclei, followed by cytokinesis, which is the division of the cytoplasm.

Mitosis itself consists of several stages: prophase, metaphase, anaphase, and telophase, leading to the equal distribution of chromosomes into the two daughter cells. After mitosis, cytokinesis occurs, where the cell membrane pinches inwards, resulting in the formation of two separate daughter cells.

The other phases, such as G1, G2, and S, focus on cell growth, DNA synthesis, or preparation for division but do not involve the actual division of the nucleus or cytoplasm. This is why the M Phase is specifically identified as the stage where both nuclear and cytoplasmic divisions occur.