What is PGD?
PGD or (Preimplantation Genetic Diagnosis) uses genetic tests that allows embryos to be selected or excluded depending on their genetic make-up.
Polymerase Chain Reaction – PCR
This tracks inheritance of specific small chromosomal regions.
- Single gene disorders
- HLA matching
Comparative Genome Hybridisation (CGH)
This checks all chromosomes to see if an embryo has a balanced set.
- Aneuploidy: frequent cause of unsuccessful IVF attempts and miscarriages
- Translocations: looks for unbalanced parts of chromosomes
- Sex selection: tells us whether the embryo is male or female