(A) MO, MV, and MP males show no difference in cue fear conditioning (mean±SEM). (B) MV and MP males display enhanced freezing in contextual fear conditioning, compared to MO males (mean±SEM) (n = 12 per group). (C and D) MO, MV, and MP females, which display no difference in dentate gyrus neurogenesis, show no difference in cue fear conditioning (mean±SEM) or contextual fear conditioning (mean±SEM), respectively. (E) MO males sired by MO, MV, or MP fathers display no difference in cue fear conditioning (mean±SEM). (F) However, MO males sired by MV or MP fathers display a greater percentage of freezing in contextual fear conditioning (mean±SEM) (MO males (P: MO male×MO female) (n = 10), MO males (P: MV male×MO female) (n = 7), and MO males (MP male×MO female) (n = 9)).