noun which may take the genitive case particle 'no'
prezygotic
Technical term in biology referring to the stage before the fusion of gametes. Used attributively with の.
接合前の生殖隔離は、種の分化に重要な役割を果たす。
Prezygotic reproductive isolation plays an important role in speciation.
prezygotic isolation
Compound of 接合 (setsugō, 'conjugation; fusion') + 前 (zen, 'before'). The exact historical derivation is uncertain; the term is a modern scientific coinage.