Post on 18-Dec-2015
personal genetics education project
What is preimplantation genetic diagnosis?
• Method to test for certain genetic traits in an embryo
• Embryo is created via in vitro fertilization
• Genetic testing occurs when embryo is 2-4 days old, typically at the 8-cell stage
• A single cell is removed and tested
• Results of testing are used to decide which embryos to implant in prospective mother’s uterus
personal genetics education project
PGD being performed on a 3-day old embryo
Image via http://www.obgyn.net/Frontiers_In_Reproductive_Medicine/images/PGD.gif
personal genetics education project
Real Families impacted by PGD: Molly and Adam Nash and the Hashmis
http://news.bbc.co.uk/olmedia/955000/images/_955928_nash150.jpg
http://www.telegraph.co.uk/news/graphics/2007/08/01/nivf101.jpg
personal genetics education project
How is Fanconi’s anemia inherited?
Fanconi’s allele
Non-Fanconi’s allele
Affected
Unaffected (carrier)Unaffected (carrier)
Unaffected (carrier)
Unaffected (carrier)
Unaffected (non carrier)