Centrosome

Definition

A centrosome is an organelle found in most eukaryotic cells near their nuclei. It's responsible for pulling apart sister chromatids during cell division.

Related terms

Microtubule: A microscopic tubular structure present in numbers in the cytoplasm of cells, sometimes aggregating to form more complex structures.

Chromatid: Each of two threadlike strands into which a chromosome divides longitudinally during cell division. Each contains a double helix of DNA.

Spindle Fibers: Formed by the centrosomes, these are protein structures that move chromosomes during cell division.