FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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Term penetration of zona pellucida ID (Ontology) GO:0007341 (Gene Ontology)
Definition The infiltration by sperm of the zona pellucida to reach the oocyte. The process involves digestive enzymes from a modified lysosome called the acrosome, situated at the head of the sperm.[ PubMed:21755679 ]
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reproductive process
 |__multicellular organismal reproductive process__
multicellular organismal process                   |
 |__multi-multicellular organism process___________|
                                                   penetration of zona pellucida
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Is a multi-multicellular organism process
multicellular organismal reproductive process
Part of single fertilization
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