It is Now Possible to Analyze the Genetics of an in Vitro

Question

It is now possible to analyze the genetics of an in vitro fertilized embryo by  
A) fetoscopy.
B) amniocentesis.
C) chorionic villi sampling.
D) preimplantation diagnosis.
E) postimplantation diagnosis.

Accepted Answer

Preimplantation diagnosis is the process of analyzing the genetics of an in vitro fertilized embryo before it is implanted into the uterus. This is typically done using techniques such as polymerase chain reaction (PCR) or fluorescence in situ hybridization (FISH) on a cell or cells removed from the embryo. Fetoscopy, amniocentesis, and chorionic villi sampling are all prenatal genetic testing methods that are done after the embryo has been implanted and has begun to develop into a fetus. Postimplantation diagnosis is not a commonly used term in the field of genetics.