Question

Which of the following methods is used in the test tube baby programme?

• A. GIFT
• B. ZIFT
• C. Intracytoplasmic sperm injection
• D. Artificial insemination

Answer 1

The correct option is B ZIFT

In the in vitro fertilisation technique (fertilisation outside the body of the female), also called test tube baby programme, ova from the female and sperm from male are collected. The sperm is used to fertilise the ova to form zygote. This is done in the laboratory under simulated conditions.
The zygote or early embryos (with upto 8 blastomeres) are transferred into the fallopian tube i.e Zygote Intra Fallopian Transfer (ZIFT).

Gamete intra fallopian transfer (GIFT) is a technique in which the female gamete from a donor is transferred into the fallopian tube of the female who cannot produce ova but can provide a suitable environment for fertilisation and development of the foetus.

In intra cytoplasmic sperm injection (ICSI), a tiny needle is used to inject sperm directly into the egg to form an embryo under laboratory conditions.

Artificial insemination is a technique in which semen from the male or healthy is artificially introduced either into the vagina or into the uterus (IUI – intra-uterine insemination) of the female.