kinetochore

Either of two submicroscopic attachment points for chromosomal microtubules, present on each centromere during the process of cell division.

the protein structure in eukaryotes which assembles on the centromere and links the chromosome to microtubule polymers from the mitotic spindle during mitosis

a specialized condensed region of each chromosome that appears during mitosis where the chromatids are held together to form an X shape