MeSH Browser

MeSH Heading: Nondisjunction, Genetic
Tree Number(s): C23.550.210.645; G05.113.220.625.620; G05.558.620
Unique ID: D009630
RDF Unique Identifier: http://id.nlm.nih.gov/mesh/D009630
Scope Note: 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.
Entry Version: NONDISJUNCTION GENET
Entry Term(s): Genetic Non-Disjunction; Genetic Nondisjunction; Non-Disjunction, Genetic
Previous Indexing: Cell Division (1966-1967); Chromosome Aberrations (1968-1981); Chromosomes (1966-1967); Meiosis (1968-1981)
Public MeSH Note: 82
History Note: 82
Date Established: 1982/01/01
Date of Entry: 1981/02/23
Revision Date: 2016/06/17

Allowable Qualifiers: drug effects (DE)

ethics (ES)

genetics (GE)

immunology (IM)

physiology (PH)

radiation effects (RE)

Concept UI: M0014951
Scope Note: 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.
Terms: Nondisjunction, Genetic Preferred Term
Term UI T028651
Date01/01/1999
LexicalTag NON
ThesaurusID NLM (1982); Genetic Non-Disjunction
Term UI T028648
Date02/23/1981
LexicalTag NON
ThesaurusID UNK (19XX); Non-Disjunction, Genetic
Term UI T028649
Date02/23/1981
LexicalTag NON
ThesaurusID UNK (19XX); Genetic Nondisjunction
Term UI T028650
Date02/23/1981
LexicalTag NON
ThesaurusID UNK (19XX)

Nondisjunction, Genetic MeSH Descriptor Data 2025