Kinetochore

A kinetochore is a complex protein structure located on a chromosome's centromere. Its primary role is to serve as an attachment point for spindle fibers during cell division. These spindle fibers pull the sister chromatids apart and ensure that each new daughter cell receives the correct number of chromosomes. The kinetochore acts as a crucial checkpoint, coordinating movement and ensuring accurate chromosome segregation, which is vital for healthy growth and development. In essence, it functions as a vital adaptor linking chromosomes to the machinery that divides and distributes genetic material during cell reproduction.