Pronuclear Transfer Technology

Pronuclear transfer is an IVF technique designed to prevent the inheritance of mitochondrial diseases. It involves the transfer of pronuclei from a fertilized egg with defective mitochondria into a healthy, enucleated donor egg. The resulting embryo has nuclear DNA from the parents and healthy mitochondrial DNA from the donor (resulting in a 'three-parent baby'). > One-line conceptual takeaway: Pronuclear transfer replaces defective mitochondrial DNA to stop hereditary mitochondrial diseases. Answer: (d).