NEET BIOLOGY

Detailed explanation-1: -Centrioles are responsible for organizing the spindle fibers in the mitotic spindle apparatus and are thought to participate in the completion of cytokinesis during the process of cell division.

Detailed explanation-2: -Definition. Centrioles are paired barrel-shaped organelles located in the cytoplasm of animal cells near the nuclear envelope. Centrioles play a role in organizing microtubules that serve as the cell’s skeletal system. They help determine the locations of the nucleus and other organelles within the cell.

Detailed explanation-3: -Spindle fibers are assembled by microtubule-organizing center called centrosomes located at the ends of the spindle. In animal cells, centrosomes contain a pair of organelles called centrioles that help organize the spindle.

Detailed explanation-4: -The structure involved in the formation of spindle fibres are centrioles. They exist in a pair close to the nucleus and are present only in the animal cell.