Karen Sermon
JBRA Assist. Reprod. 2004; 8 (2):7-20
Received April 15, 2004
Accepted April 20, 2004
Abstract
Preimplantation genetic diagnosis (PGD) is a very early form of prenatal diagnosis. Oocytes or preimplantation embryos are obtained in vitro and are genetically analysed, after which only those embryos that are judged to be free of the genetic defect under consideration are transferred. Initially, PGD was developed to help couples at risk for monogenic diseases.
