Question

Differentiate ICSI andGIFT

Answer 1

GIFT (gamete intrafallopian transfer) and ZIFT (zygote intrafallopian transfer) are modified versions of in vitro fertilization (IVF).

Like IVF, these procedures involve retrieving an egg from the woman, combining with sperm in a lab then transferring back to her body, but in GIFT and ZIFT the process goes more quickly. While in traditional IVF the embryos are observed and raised in a laboratory for 3 to 5 days, in ZIFT, the fertilized eggs -- at this stage called zygotes -- are placed in the fallopian tubes within 24 hours. In GIFT, the sperm and eggs are just mixed together before being inserted and, with luck, one of the eggs will become fertilized inside the fallopian tubes.