FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term meiosis I ID (Ontology) GO:0007127 (Gene Ontology)
Definition The first meiotic nuclear division in which homologous chromosomes are paired and segregated from each other, producing two haploid daughter nuclei.[ PubMed:9334324 ]
Also Known As "meiosis I nuclear division"
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Records annotated with this exact term (annotations to child terms are NOT included)
Data Class Field Records
Alleles (FBal)  PHENOTYPE_MANIFEST_IN      13
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 Alleles
 meiosis I (all annotations which use CV term, excluding "NOT" statements)      13
     meiosis I | female       2
     meiosis I | male       1
Spanning Tree (Parents/Children)
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nuclear division
 |__meiotic nuclear division______
meiotic cell cycle process        |
 |__meiosis I cell cycle process  |
 |__meiotic nuclear division______|
                                  meiosis I  86 rec.
                                  meiosis I cell cycle process(+) 137 rec.
                                   |__meiosis I  86 rec.
                                   |   |__achiasmate meiosis I 3 rec.
                                   |   |__female meiosis I 8 rec.
                                   |   |__male meiosis I 11 rec.
                                   |__achiasmate meiosis I 3 rec.
                                   |__female meiosis I 8 rec.
                                   |__male meiosis I 11 rec.
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Is a meiosis I cell cycle process
meiotic nuclear division
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Synonyms
  • "meiosis I nuclear division" EXACT
Secondary IDs
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Wikipedia:Meiosis#Meiosis_I