Under which condition can preimplantation genetic testing be performed?
A)During in vitro fertilization
B)Between 4 to 6 weeks' gestation
C)When paternity is unknown
D)When an ultrasound indicates the fetus has a structural abnormality

Question

Quizplus · Accepted Answer

Preimplantation genetic diagnosis is a process only done in conjunction with in vitro fertilization because it is performed on early embryonic cells that are in a petri dish and have never been in the mother's body. A group of embryos generated by in vitro fertilization is removed from the eight-cell blastocyst. Cells from each embryo can be tested to find gene variants causing single-gene disorders or chromosomal problems, or to determine sex. One or two "healthy" embryos are then selected for implantation.

Under Which Condition Can Preimplantation Genetic Testing Be Performed