In tissue typing for organ transplant what is matched is

Which group of genes control tissue typing before organ transplantation ?

Rejection of organ transplant is due to

Rejection of organ transplant is due to

Tissue grafting or organ transplant in between the genetically dissimilar individuals of the same species is called

Organ transplant rejection is prevented by

Organ transplant rejection is prevented by :

Rejection of tissue or organ transplants is brought about mainly by ---