Diseases

Genetic Nondisjunction

The failure of homologous CHROMOSOMES or CHROMATIDS to segregate during MITOSIS or MEIOSIS with the result that one daughter cell has both of a pair of parental chromosomes or chromatids and the other has none.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

The failure of homologous CHROMOSOMES or CHROMATIDS to segregate during MITOSIS or MEIOSIS with the result that one daughter cell has both of a pair of parental chromosomes or chromatids and the other has none.

MeSH Record

Classification

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MeSH Record

Synonyms

9 entry terms
  • Genetic Non-Disjunction
  • Non-Disjunction, Genetic
  • Nondisjunction, Genetic
  • Genetic Non Disjunction
  • Genetic Non-Disjunctions
  • Genetic Nondisjunctions
  • Non Disjunction, Genetic
  • Non-Disjunctions, Genetic
  • Nondisjunctions, Genetic

MeSH Record

Aspects Covered

6 allowable subheadings

Indexed with the subheadings drug effects, ethics, genetics, immunology, physiology, radiation effects.

MeSH Record

History Note

82

MeSH Record

Previous Indexing

  • Cell Division (1966-1967)
  • Chromosome Aberrations (1968-1981)
  • Chromosomes (1966-1967)
  • Meiosis (1968-1981)

MeSH Hierarchy

Tree Numbers

  1. C23.550.210w.645w
  2. G05.113w.220.625w.620w
  3. G05.558w.620w

AMA Style

References

  1. National Library of Medicine. Genetic Nondisjunction. Medical Subject Headings (MeSH). 2026. Unique ID D009630. http://id.nlm.nih.gov/mesh/2026/D009630
  2. Genetic Nondisjunction. In: Wikipedia. https://en.wikipedia.org/wiki/Nondisjunction
  3. Genetic Nondisjunction. In: Wikidata. https://www.wikidata.org/wiki/Q1414557