Centriole vs Centromere
Centrioles are small functional structures or organelles inside cells of most animals that assume significance during cell division. Centrioles are microscopic in nature and one of many cell structures that are crucial in some of the functions of a eukaryotic cell. Eukaryotic cells are found in humans as well as some animals and one of the special characteristic of these cells is that they keep dividing to enable the organism to grow and remain healthy. There are two pairs of Centrioles and each pair is termed as a centrosome. In a centrosome, Centrioles are arranged perpendicular to each other.
Now, Centromere is a region inside a centrosome (middle part) and is the place where chromatids are in close contact. When cell division takes place, it is the spindle at the Centromere that helps a chromosome to get attached to it. The major function of Centrioles is to aid in cell division. They are used in both division processes of mitosis and meiosis. These Centrioles are not to be seen at other times but become prominent during cell division.
Centrioles in turn are made up of microtubules (9 groups of microtubules arranged in a specific manner). During cell division, Centrioles form a spindle at Centromere to which chromatids join together.
Normally, when the cells are relaxing, Centrioles are not seen. Instead, what is seen is a dark; condense area of cytoplasm known as centrosome. When time comes for cell division, Centrioles appear suddenly moving towards ends of a nucleus. In cell division, there are four Centrioles and one pair moves in one direction while the other pair moves to the opposite direction.
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In brief: Centriole vs Centromere • Centrioles are small organelles inside a cell while Centromere is a region in a chromosome • Centriole produces microtubules that attach to chromatids at the Centromere.
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