Question

ZIFT is

• A. transfer of zygote into the Fallopian tube
• B. transfer of embryo into the uterus
• C. transfer of mixture of sperms and ova into the Fallopian tube
• D. transfer of mixture of sperms and ova into the uterus

Answer 1

The correct option is A

transfer of zygote into the Fallopian tube

The transfer of zygote into the Fallopian tube is called ZIFT or Zygote IntraFallopian Transfer. This is a modification of the standard IVF procedure.

ZIFT is identical to IVF throughout ovarian stimulation, egg retrieval, and fertilization. The only difference is when the embryos are replaced, and also where they are placed during the transfer procedure. In standard IVF, embryos are left in the laboratory until day 3 (or until day 5 in certain circumstances). They are then replaced in the uterus, thereby bypassing the fallopian tubes.

That is why IVF was initially developed for women with blocked or irreparably damaged fallopian tubes. But many women have open fallopian tubes and their infertility is caused by other factors than tubal blockage. In these cases, it is possible to take the embryos and to put them back into the body via the fallopian tubes, thereby allowing them to develop (more naturally) in the fallopian tube, and to arrive in the uterus in the way that they normally do in nature.