Difference Between Centrioles and Centromere
Centrioles are small functional structures or organelles within the cells of most animals that assume significance during cell division. Centrioles are microscopic in nature and one of the numerous cell structures that are essential in some of the functions of a eukaryotic cell. Eukaryotic cells are found in humans as well as some of the animals and a special feature of these cells is that they continue to divide and allow the organism to grow and stay healthy. There are two pairs of centrioles and each pair is called a centrosome. In a centrosome, centrioles are arranged vertically to each other.
Now Centromere is an area within a centrosome (the middle part) and is where chromatids are in close contact. When cell division occurs, the spindle at the Centromere helps the chromosome to be attached to it. The important function of the Centrioles to help in the cell division. They are used in both the mitosis and in meiosis division process. Centrioles are not seen at other times, but they become prominent during cell division.
Centrioles are in turn, composed of microtubules (9 groups of microtubules arranged in a specific way). During cell division, Centrioles create a spindle at Centromere at which chromatids join.
Normally, when cells are resting, Centrioles are not seen. Instead what is seen is a dark, compact the area of cytoplasm known as the centrosome. When the time comes for cell division, Centrioles suddenly move to the extremities of a nucleus. In cell division, there are four pairs of centrioles and movements in one direction while the other pair moves in the opposite direction.