#chromosome  a threadlike body in the cell nucleus that carries the genes in a linear order
  supertype:  body.natural_object  an individual 3-dimensional object that has mass and that is distinguishable from other objects; "heavenly body"
  part:  nucleolus_organizer  gene  chromatid  centromere
  part of:  cell_nucleus
  subtype:  sex_chromosome__sexchromosome  a chromosome that determines the sex of an individual; "mammals normally have two sex chromosomes"
     subtype:  X_chromosome  the sex chromosome that is present in both sexes: singly in males and doubly in females; "human females normally have two X chromosomes"
     subtype:  XX  (genetics) normal complement of sex chromosomes in a female
     subtype:  XXX  (genetics) abnormal complement of three X chromosomes in a female
     subtype:  XXY  (genetics) abnormal complement of sex hormones in a male resulting in Klinefelter's syndrome
     subtype:  XY  (genetics) normal complement of sex hormones in a male
     subtype:  XYY  (genetics) abnormal complement of sex hormones in a male who has two Y chromosomes
     subtype:  Y_chromosome  the sex chromosome that is carried by men; "human males normally have one X chromosome and one Y chromosome"
  subtype:  autosome__somatic_chromosome__somaticchromosome  any chromosome that is not a sex chromosome; appear in pairs in body cells but as single chromosomes in spermatozoa
  subtype:  acentric_chromosome  a chromosome lacking a centromere
  subtype:  acrocentric_chromosome__acrocentricchromosome  a chromosome with the centromere near one end so that one chromosomal arm is short and one is long
  subtype:  metacentric_chromosome__metacentricchromosome  a chromosome having two equal arms because the centromere is in median position
  subtype:  telocentric_chromosome__telocentricchromosome  a chromosome like a straight rod with the centromere in terminal position

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