The transfer of the ovum from a donor to the fallopian tube of another female is known as:
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → GIFT
Option (1) ZIFT — Incorrect. In ZIFT (zygote intra fallopian transfer) a zygote or an early embryo with up to 8 blastomeres is put into the fallopian tube. It is a zygote, not an ovum.
Option (2) IUT — Incorrect. In IUT (intra uterine transfer) an embryo with more than 8 blastomeres is put into the uterus. Both the thing moved and the place are different.
Option (3) In-vivo fertilization — Incorrect. In-vivo fertilisation is the fusion of gametes inside the female’s body. It is how fertilisation happens, not a method of moving an ovum from a donor.
Option (4) GIFT — Correct. GIFT stands for gamete intra fallopian transfer. It helps a female who cannot produce ova but whose fallopian tube can still give the right place for fertilisation and early development.
Note: A similar question was also asked in CUET (UG) 2024 on 29-05-2024 (Slot 1), and in CUET (UG) 2022 on 16-07-2022 (Slot 1).
NCERT Extract:
Infertility – …
