Question

1.what advantage does PGD offer over genetic testing of the fetus?

2. PGD is used primarily to look for embryos that have an abnormal chromosome that is known from a parent or to look for large chromosome structural abnomalities. True or false ?

3. For PGD, embryonic DNA information can be obtained by removing maetrial from the polar body, an early cleavage stage, or from the outer ring of the blastocyst. Using the blastocyst is the newest method, and it removes cells from the section that won't become a part of thw fetus. True or false?

4.PGS is used to look at the entire genetic sequence of the embryo and select the most desirable ones for implantation. True or false?

5.PGS is usually used for patients who are having difficulties getting pregnant, while PGD is usually used for patients who might be carriers of a known genetic disorder but not necessarilly experiencing fertility problems. True or false?

6.one of the controversies surrounding used of PGD technology is the possibility of "designing" babies. How would this "design" actually differ from what occurs in PGD?

7. PGS can be used to screen for sex of the baby. This selection is banned in many countries but may be widely practiced in others. True or false?

Answer 1

The answer of the question no 1 is-

PGD ( preimplantation genetic diagnosis) is a technique (performed before the transfer of embryos to a female during an in vitro fertilization or IVF procedure) used to detect genetic defects in the embryos( that is created during an IVF procedure).

The advantages that PGD offers over genetic testing of the fetus are as follows-

1. PGD helps to identify the embryos that contain genetic defects or any disease causing gene. Thus, it gives the doctors an opportunity to eliminate those defective embryos and thus only healthy embryos can be transferred to the uterus of a female during IVF.

2. With the help of PGD, the couples who are the carriers of any genetic disorder can reduce the risk of passing the disease causing gene to their child. Thus, they can have a normal healthy (neither affected nor the carrier) child.

3. PGD allows the doctors to transfer the healthy embryos to the uterus of a female during IVF. Thus, PGD helps to improve the difficulties of a successful pregnancy.