Biogenesis

In John 12:24, Jesus said concerning His approaching death, “Most assuredly, I say to you, unless a grain of wheat falls into the ground and dies, it remains alone; but if it dies, it produces much grain” (emp. added). The Law of Biogenesis says that in nature, life comes only from life of its own kind (Miller, 2012). Life cannot spontaneously generate or create itself. So, how could a grain which “dies,” subsequently produce living things? Does this phenomenon contradict the Law of Biogenesis? Did Jesus make a mistake? Was He ignorant of the scientific principle we call the Law of Biogenesis?