Final answer:
The statement is true; cytokinesis is the stage in the cell cycle when the cell's cytoplasm divides into two, following nuclear division, resulting in two daughter cells.
Step-by-step explanation:
Cytokinesis is indeed the period during the cell cycle when the cell's cytoplasm divides into two parts, following the division of the nucleus during mitosis. Therefore, the statement is A) True. Cytokinesis completes the final stage of the cell cycle by ensuring that each of the two daughter cells receives a proper portion of the cytoplasm as well as organelles. This leads to the formation of two genetically identical daughter cells. It's essential to recognize that cytokinesis can vary between plant and animal cells due to the presence of cell walls in plant cells, which requires a different mechanism to divide the cytoplasm.
In summary, the cell cycle is composed of phases: interphase, during which the cell grows and replicates its DNA, and the mitotic phase, which includes both mitosis and cytokinesis. The mitotic phase results in the division of the nucleus and then the cytoplasm, producing two new daughter cells. This cell division process is crucial for growth, development, and the maintenance of the body's stable cell population.