CELL BIOLOGY A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z                    HOME ABOUT CATEGORIES SITE MAP COPYRIGHT ADVERTISE CONTACT entire Web this site centromere The constricted region, containing no genes, near the center of a human chromosome that appears only during cell division. When chromosomes shrink during meiosis or mitosis, the centromere is the region of the chromosome where the two sister chromatids are joined to one another. It also connects the chromosomes to the spindle fibers. Related category    • CELL BIOLOGY Source: National Human Genome Research Institute Also on this site: Encyclopedia of Alternative Energy & Sustainable Living Encyclopedia of History Transport Concepts & Designs (partner site) BACK TO TOP