Matt asks: In an organ or blood transplant/transfusion, does the donor’s DNA get kept and integrated into the new host? Depending on the type of donation, the DNA stays for a short time, a long while, or maybe even forever. Chimerism and Microchimerism Scientists have known for years that a single organism can have cells that are genetically distinct. Sometimes, … Continue reading In a Transplant/Transfusion, Does the Donor’s DNA Get Integrated Into the New Host?