IVF is a technique that involves transfer of which one of the following into the fallopian tube?
Embryo only, upto 8-celled stage
Either zygote or early embryo upto 8 cell stage
Embryo of 32 cell stage
Zygote only
In vitro fertilization (IVF) technique involves fertilizing of eggs outside the body. Fertilized eggs known as pre-embryos are transferred back into the uterus. In this, the zygote or early embryos up to 8-cell stage are transferred into the Fallopian tube.