Which ART procedure involves transferring both gametes into a fallopian tube?

Which ART procedure involves transferring both gametes into a fallopian tube?

• A. IVF with embryo transfer
• B. ICSI
• C. ZIFT
• D. Gamete intrafallopian transfer

Answer: (D)

Placing both gametes into the fallopian tube to achieve fertilization inside the body is Gamete intrafallopian transfer. In this approach, eggs and sperm are deposited directly into the fallopian tube (usually via laparoscopy), allowing fertilization to occur in vivo and the resulting embryo to migrate to the uterus for implantation. This differs from methods where fertilization happens outside the body. In vitro fertilization with embryo transfer involves fertilizing the eggs in the lab and then transferring embryos into the uterus, not the fallopian tubes. Intracytoplasmic sperm injection also happens in the lab, where a single sperm is injected into an egg, with the resulting embryo transferred to the uterus. Zygote intrafallopian transfer places fertilized zygotes into the fallopian tube, but fertilization occurred in the lab, not within the tube with both gametes.

Placing both gametes into the fallopian tube to achieve fertilization inside the body is Gamete intrafallopian transfer. In this approach, eggs and sperm are deposited directly into the fallopian tube (usually via laparoscopy), allowing fertilization to occur in vivo and the resulting embryo to migrate to the uterus for implantation. This differs from methods where fertilization happens outside the body.

In vitro fertilization with embryo transfer involves fertilizing the eggs in the lab and then transferring embryos into the uterus, not the fallopian tubes. Intracytoplasmic sperm injection also happens in the lab, where a single sperm is injected into an egg, with the resulting embryo transferred to the uterus. Zygote intrafallopian transfer places fertilized zygotes into the fallopian tube, but fertilization occurred in the lab, not within the tube with both gametes.