Germ cell and fertilization Germ cell spermatozoon and ovum 1. spermatozoon Capacitation: In female reproductive tract, the sperms were enabled to bind to the zona pellucida receptors removal of glycoproteins(decapacitation factor which cover the sperms 2. Ovum secondary oocyte arrested at metaphase in the second meiotic divisionGerm cell and fertilization Germ cell spermatozoon and ovum 1. Spermatozoon Capacitation：In female reproductive tract, the sperms were enabled to bind to the zona pellucida receptors. removal of glycoproteins (decapacitation factor) which cover the sperms 2. Ovum secondary oocyte arrested at metaphase in the second meiotic division