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Sister Chromatid Exchange MeSH Descriptor Data 2022


MeSH Heading
Sister Chromatid Exchange
Tree Number(s)
G05.728.615.750
Unique ID
D012854
RDF Unique Identifier
http://id.nlm.nih.gov/mesh/D012854
Scope Note
An exchange of segments between the sister chromatids of a chromosome, either between the sister chromatids of a meiotic tetrad or between the sister chromatids of a duplicated somatic chromosome. Its frequency is increased by ultraviolet and ionizing radiation and other mutagenic agents and is particularly high in BLOOM SYNDROME.
NLM Classification #
QU 500
Previous Indexing
Chromatids (1968-1979)
Chromosome Aberrations (1968-1979)
Crossing Over (Genetics) (1968-1979)
Cytogenetics (1967)
Genetics (1966)
See Also
Crossing Over, Genetic
Public MeSH Note
85; was see under CROSSING OVER (GENETICS) 1980-84
History Note
85(80); was see under CROSSING OVER (GENETICS) 1980-84
Date Established
1985/01/01
Date of Entry
1978/12/21
Revision Date
2016/06/17
Sister Chromatid Exchange Preferred
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