動原体

(1)a specialized condensed region of each chromosome that appears during mitosis where the chromatids are held together to form an X shape; "the centromere is difficult to sequence"

(2)X字型を形成するために染色分体が一緒に保持される間接核分裂の間に出現する個々の染色体の特殊化された濃縮された領域

(1)