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Descriptor English: | Crossing Over, Genetic | ||||||
Descriptor Spanish: |
Intercambio Genético
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Descriptor Portuguese: | Troca Genética | ||||||
Descriptor French: | Crossing-over | ||||||
Entry term(s): |
Enjambement (génétique) Enjambement chromosomique |
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Tree number(s): |
G05.728.615.200 |
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RDF Unique Identifier: | https://id.nlm.nih.gov/mesh/D003434 | ||||||
Scope note: | The reciprocal exchange of segments at corresponding positions along pairs of homologous CHROMOSOMES by symmetrical breakage and crosswise rejoining forming cross-over sites (HOLLIDAY JUNCTIONS) that are resolved during CHROMOSOME SEGREGATION. Crossing-over typically occurs during MEIOSIS but it may also occur in the absence of meiosis, for example, with bacterial chromosomes, organelle chromosomes, or somatic cell nuclear chromosomes. |
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Annotation: | do not confuse with CROSSES, GENETIC, the result of breeding 2 varieties of the same species |
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Allowable Qualifiers: |
DE effets des médicaments et des substances chimiques ES éthique GE génétique IM immunologie PH physiologie RE effets des radiations |
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Related: |
Appariement des chromosomes
MeSH Stade pachytène MeSH Échange de chromatides soeurs MeSH | ||||||
DeCS ID: | 3451 | ||||||
Unique ID: | D003434 | ||||||
Documents indexed in the Virtual Health Library (VHL): | Click here to access the VHL documents | ||||||
Date Established: | 1968/01/01 | ||||||
Date of Entry: | 1999/01/01 | ||||||
Revision Date: | 2016/06/17 |
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PHÉNOMÈNES ET PROCESSUS
Phénomènes génétiques [G05]Phénomènes génétiques
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Crossing-over
- Preferred
Concept UI |
M0005351 |
Preferred term | Crossing-over |
Entry term(s) |
Enjambement (génétique) Enjambement chromosomique |
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