Chromatid

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  • one of the two daughter strands of a replicated chromosome, joined by the centromere to the other daughter chromatid[1]
  • one of two threads and its matrix in a chromosome[2]
  • Each of the two daughter strands of a duplicated chromosome joined at the centromere during mitosis and meiosis.
  • A chromatid is one of two identical halves of a replicated chromosome. During cell division, the chromosomes first replicate so that each daughter cell receives a complete set of chromosomes. Following DNA replication, the chromosome consists of two identical structures called sister chromatids, which are joined at the centromere.


  1. Source: Jenkins, John B. 1990. Human Genetics, 2nd Edition. New York: Harper & Row
  2. Source: Noland, George B. 1983. General Biology, 11th Edition. St. Louis, MO. C. V. Mosby


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