Which method can be used for women who cannot produce ovum but can provide suitable environment for fertilisation?
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → GIFT
Assisted reproductive technologies (ART) help couples who cannot have children. The method depends on what is missing. Here the woman cannot make an ovum, but her body can still support fertilisation and growth of the embryo. So an ovum from a donor is placed into her fallopian tube.
Option (1) ICSI — Incorrect. ICSI (intra cytoplasmic sperm injection) forms an embryo in the laboratory by injecting a sperm directly into an ovum. It needs an ovum, and fertilisation happens outside the body, not in the woman’s own tube.
Option (2) GIFT — Correct. GIFT (gamete intra fallopian transfer) places an ovum from a donor into the fallopian tube of a woman who cannot produce one. Fertilisation and further development then take place inside her body.
Option (3) IUI — Incorrect. IUI (intra-uterine insemination) places semen from the husband or a donor into the uterus. It helps when the male partner cannot inseminate or has a low sperm count; it does not replace a missing ovum.
NCERT Extract:
Infertility – “… Transfer of an ovum collected from a donor into the fallopian tube (GIFT – gamete intra fallopian transfer) of another female who cannot produce one, but can provide suitable environment for fertilisation and further development is another method attempted. Intra cytoplasmic sperm injection (ICSI) is another specialised procedure to form an embryo in the laboratory in which a sperm is directly injected into the ovum.”