Pronuclear transfer is a form of mitochondrial replacement therapy aimed at preventing the transmission of mitochondrial diseases from mother to offspring. In this technique, the nuclei from a fertilized egg of a mother with defective mitochondria are transferred to a donor egg that has healthy mitochondria, thereby producing an embryo that retains the mother's nuclear DNA while utilizing the donor's healthy mitochondrial DNA. This innovative approach not only addresses serious genetic disorders but also illustrates the ethical and scientific advancements in human reproductive technology, emphasizing the potential to reduce hereditary diseases in future generations.