PGD ​​(Preimplantation Genetic Diagnosis) It has a different usage area than PGS. With PGD, abnormalities called single gene diseases are screened. PGD ​​is especially applied to couples at risk of single gene disease (cystic fibrosis, thalassemia / sickle cell anemia, hemophilia, balanced structural chromosome disorder, etc.). For example, the presence of balanced structural translocation in the mother and father leads…