FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
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Term development of primary male sexual characteristics ID (Ontology) GO:0046546 (Gene Ontology)
Definition The process whose specific outcome is the progression of the primary male sexual characteristics over time, from their formation to the mature structures. The primary male sexual characteristics are the testes, and they develop in response to sex hormone secretion.
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developmental process involved in reproduction
 |__development of primary sexual characteristics__
multicellular organism development                 |
 |__development of primary sexual characteristics__|
 |__male sex differentiation_______________________|
sex differentiation                                |
 |__development of primary sexual characteristics__|
 |__male sex differentiation_______________________|
                                                   development of primary male sexual characteristics  9 rec.
                                                    |__male gonad development 9 rec.
                                                        |__Leydig cell differentiation
                                                        |__regulation of male gonad development(+) 1 rec.
                                                        |__seminiferous tubule development
                                                        |__Sertoli cell differentiation(+)
                                                        |__Sertoli cell proliferation
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Is a development of primary sexual characteristics
Part of male sex differentiation
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