Representative images of PCNA and BCL2 in antral (10 mo old), BAX in primordial (primary Fetal Day 90) and CASP3 in antral follicles (10 mo old). G, granulosa cells; TE, theca externa; TI, theca interna; O, oocyte; Pi, primary follicle; Po, primordial follicle. Bar = 25 μm.