1. Plural of kinetochore; protein structures on chromosomes that attach to spindle fibers during cell division, enabling chromosome movement.
Usage: biology; technical; plural form

Examples

• During mitosis, kinetochores attach to microtubules that pull chromosomes toward opposite poles of the cell.
• The kinetochores ensure that each daughter cell receives an exact copy of the genetic material.
• Scientists study kinetochores to understand how chromosomal errors lead to genetic disorders.
• Defective kinetochores can result in improper chromosome segregation during cell division.
• Under the electron microscope, kinetochores appear as disc-shaped structures at the centromere.