What does this mean? What would be a good reasoning behind this.
Sometimes during therapeutic cloning stem cells have been mutated and then become rejected by the patients body.
2 answers
One of the advantages of therapeutic cloning of skin or organs is that the stem cells come from the patient's own body. But, occasionally these cells may change or mutate, and the body will not accept them. In that case the patient's body rejects them. The cloning was a failure.
A patient’s body is less likely to reject an allograft if it comes from a
close relative. Why do you think this is true?