Explanation

Zygote is transferred to the Fallopian tube. ZIFT (Zygote Intra Fallopian Transfer) In ZIFT, the embryo upto 8 celled stage is transferred to Fallopian tube. Rest of the development takes place as that of the natural zygote in the uterus (i) Collected gamete are made to form zygote in laboratory, in vitro fertilisation (IVF) (ii) Zygote or early embryo with up to 8 blastomeres is transferred into the oviduct (ZIFT) (iii) Zygote with more than 8 blastomeres is transferred into uterus (IUT) (iv) Fusion of gamete within the body of female (In vivo fertilisation) (v) Transfer of ovum from the donor to the oviduct of the recipient (GIFT) (vi) Sperms are injected into the ovum in vitro (ICSI)