"C0015914"^^ . "Fertilization"^^ . "NICHD"^^ . . . "Fertilization"^^ . "FertilizationPTNICHD" . "Fertilization"^^ . "Cell Function"^^ . . "FertilizationPTNCI" . "C16579"^^ . . . . . "The process beginning with penetration of the secondary oocyte by the spermatozoon and completed by fusion of the male and female pronuclei.NCI" .