What is zygote intrafallopian transfer (ZIFT)?

• A. A procedure where embryos are placed into the uterus.
• B. A variation of IVF where fertilized eggs are placed directly into a fallopian tube.
• C. A procedure where eggs are fertilized inside the uterus.
• D. Insemination of sperm into the cervix.

Answer: (B)

ZIFT is a form of assisted reproduction where fertilization occurs outside the body and the resulting zygote is placed into the fallopian tube rather than into the uterus. After eggs are retrieved and fertilized in the laboratory, the zygote is transferred into the fallopian tube, typically via a laparoscopic procedure, so natural transport through the tube can continue before implantation in the uterine lining. This differs from standard IVF, where embryos are placed into the uterus. It also isn’t about fertilization inside the uterus or insemination into the cervix, which are separate approaches.