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Chromosome is a threadlike structure formed in the nucleus in an early stage of cell division. Chromosomes consist of DNA and proteins, and the function is to transmit genetic information by carrying genes to daughter cells.

Chromosomes contain a centromere and telomere regions. In normal chromosomes, two sister chromatids are held together at the centromere.

Chromosome structure

Definitions in the literature

  • Structure consisting of DNA and associated proteins that carries and transmits genetic information [1].
  • A threadlike structure several to many of which are found in the nucleus of plant and animal (eukaryotic) cells [2].
  • a DNA double helix and associated proteins that help to organiza and regulate the use of DNA [3].
  • Structure that consists of DNA together with associated proteins; carries part or all of a cell's genetic information [4].