FB2026_03 , released September 17, 2026
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Term homologous chromosome segregation ID (Ontology) GO:0045143 (Gene Ontology)
Definition The cell cycle process in which 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.[ ISBN:0815316194 ]
Also Known As"meiosis I, chromosome segregation"
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Genes (FBgn)GO_BIOLOGICAL_PROCESS
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 homologous chromosome segregation (all annotations which use CV term, excluding "NOT" statements)
     involved_in | homologous chromosome segregation
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meiosis I cell cycle process
 |__meiosis I_______________________
nuclear chromosome segregation      |
 |__meiotic chromosome segregation__|
meiotic nuclear division            |
 |__meiosis I_______________________|
 |__meiotic chromosome segregation__|
meiotic cell cycle process          |
 |__meiotic chromosome segregation__|
                                    homologous chromosome segregation  21 rec.
                                     |__chromosome localization to nuclear envelope involved in homologous chromosome segregation
                                     |   |__meiotic telomere clustering(+)
                                     |__homologous chromosome movement towards spindle pole in meiosis I anaphase
                                     |__homologous chromosome pairing at meiosis 15 rec.
                                     |   |__chiasma assembly
                                     |   |__linear element assembly(+)
                                     |   |__synaptonemal complex assembly(+) 10 rec.
                                     |__meiotic centromeric cohesion protection in anaphase I
                                     |__meiotic metaphase I homologous chromosome alignment 2 rec.
                                     |   |__homologous chromosome orientation in meiotic metaphase I
                                     |   |__regulation of spindle attachment to meiosis I kinetochore(+)
                                     |   |__spindle attachment to meiosis I kinetochore(+) 1 rec.
                                     |__regulation of homologous chromosome segregation
                                         |__regulation of linear element assembly(+)
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Is a meiotic chromosome segregation
Part of meiosis I
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  • "meiosis I, chromosome segregation" EXACT
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