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Xenopus Anatomy Ontology
Last uploaded:
September 3, 2024
| Id | http://purl.obolibrary.org/obo/XAO_0005013
http://purl.obolibrary.org/obo/XAO_0005013
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| Preferred Name | centromere |
| Definitions |
The region of a chromosome that is attached to the spindle during nuclear division. It is defined genetically as the region of the chromosome that always segregates at the first division of meiosis; the region of the chromosome in which no crossing over occurs. At the start of M phase, each chromosome consists of two sister chromatids with a constriction at a point which forms the centromere. During late prophase two kinetochores assemble on each centromere, one kinetochore on each sister chromatid.
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| Type | http://www.w3.org/2002/07/owl#Class |
All Properties
| definition | The region of a chromosome that is attached to the spindle during nuclear division. It is defined genetically as the region of the chromosome that always segregates at the first division of meiosis; the region of the chromosome in which no crossing over occurs. At the start of M phase, each chromosome consists of two sister chromatids with a constriction at a point which forms the centromere. During late prophase two kinetochores assemble on each centromere, one kinetochore on each sister chromatid. |
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| prefLabel | centromere
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| label | centromere
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| has_obo_namespace | xenopus_anatomy
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| creation_date | 2015-05-14T17:55:01Z
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| created_by | eriksegerdell
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| type | |
| id | XAO:0005013
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| notation | XAO:0005013
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