. . "105131149"@en-us . . "centromere"@en-us . . . "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\""@en-us . . . "105444324"^^ . "0"^^ . . . "104222820"@en-us . . . "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\""@en-us . . "05444324-n"^^ . "kinetochore"@en-us . "0"^^ . . . "centromere"^^ . . . . . . . .