What structure contains centrioles and is involved in cell division?

The centrosome is the correct structure that contains centrioles and plays a crucial role in cell division. It is an organelle found in eukaryotic cells and serves as the main microtubule organizing center. During cell division, specifically in mitosis, the centrosome duplicates so that each new daughter cell receives one centrosome. The centrioles, which are cylindrical structures made up of microtubules, are found within the centrosome and are essential for the formation of the spindle apparatus that helps segregate chromosomes during cell division. This spindle apparatus is critical for ensuring that each daughter cell has the appropriate number of chromosomes.

The other structures mentioned do not have this specific function in cell division. The nucleus, for instance, is the cellular organelle that houses genetic material but does not directly contribute to the organization of microtubules or the division processes. Mitochondria are primarily involved in energy production, and the Golgi apparatus is responsible for modifying, sorting, and packaging proteins and lipids but does not play a role in the physical process of cell division.