spacer
spacer
Type a query for QuickGO...
You can reach the search box using alt+9 (Win/IE), alt+shift+9 (Win/Firefox) or ctrl+9 (Mac)
EBIDatabasesQuickGO

GO:0045143 homologous chromosome segregation

The cell cycle process whereby replicated homologous chromosomes are organized and then physically separated and apportioned to two sets during the first division of the meiotic cell cycle. Each replicated chromosome, composed of two sister chromatids, aligns at the cell equator, paired with its homologous partner; this pairing off, referred to as synapsis, permits genetic recombination. One homolog (both sister chromatids) of each morphologic type goes into each of the resulting chromosome sets.

Term Information

ID GO:0045143
Name homologous chromosome segregation
Ontology Biological Process
Definition The cell cycle process whereby replicated homologous chromosomes are organized and then physically separated and apportioned to two sets during the first division of the meiotic cell cycle. Each replicated chromosome, composed of two sister chromatids, aligns at the cell equator, paired with its homologous partner; this pairing off, referred to as synapsis, permits genetic recombination. One homolog (both sister chromatids) of each morphologic type goes into each of the resulting chromosome sets.
Comment

Synonyms

Type Synonym
exact meiosis I, chromosome segregation

Web service: term information

Use this URI template to access this data as a service:

GTerm?id=termID&format=format

Full details can be found on the QuickGO Web Services page.

Ancestor Chart

Visual display of a section of the GO directed acyclic graph (DAG) for a single GO term. Terms in the GO are linked to parent (more general) terms and often to child (more specific) terms by one or more 'relationships'

All GO terms displayed in this graph can be clicked to display term definitions and child (descendent) terms.

Chart

Ancestor Table

Alternative display of a section of the GO, providing a concise view of the relationships connecting GO terms

All GO terms displayed in this chart can be right-clicked to display term definitions and child (descendent) terms.

GO:0008150 biological_process
GO:0009987 cellular process
GO:0007049 cell cycle
GO:0007059 chromosome segregation
GO:0051321 meiotic cell cycle
GO:0022402 cell cycle process
GO:0022403 cell cycle phase
GO:0000279 M phase
GO:0051327 M phase of meiotic cell cycle
GO:0007126 meiosis
GO:0007127 meiosis I
GO:0045132 meiotic chromosome segregation
GO:0045143 homologous chromosome segregation

Relationship key

Code Relationship
part of
is a
regulates
+ve regulates
-ve regulates

Child Terms

All direct descendants (child terms) available for this GO term:
P GO:0043060 meiotic metaphase I plate congression
P GO:0051455 attachment of spindle microtubules to kinetochore during meiosis I
P GO:0051758 homologous chromosome movement towards spindle pole during meiosis I
R GO:0060629 regulation of homologous chromosome segregation

Relationship key

CodeRelationship
Ppart of
Iis a

Protein Annotation

DB
ID
Qualifier colocalizes_with contributes_to NOT NOT|colocalizes_with NOT|contributes_to
GO Term
Reference
Evidence IMP IGI IPI IGC ISS IDA IEP IEA TAS NAS ND IC RCA ISA EXP
With
Taxonomy
From
Download limit
Format

Co-occurring Terms

Co-occurrence statistics

This display shows those GO terms which have been annotated to the same proteins as this term.
Terms may have been co-annotated either by electronic (IEA) or manual annotation methods. Users can decide which evidence code type should be used in the calculation of the co-occurence statistics.
Click on the 'Update' button to run the co-occurence calculation
IMP IGI IPI IGC ISS IDA IEP IEA TAS NAS ND IC RCA ISA EXP Statistics may take up to 1 minute to calculate
spacer
12ms
Stand-alone
Hostnametomcat-7.ebi.ac.uk
Uptime16:38 12/10/2009
Data version2009-12-16-04-01-54
Terminal
spacer