Transfer of a zygote or an early embryo of up to 8 blastomeres into the fallopian tube is called

1. After laboratory fertilisation the embryo has to be placed back appropriately. 2. A zygote or early embryo with up to 8 blastomeres goes into the fallopian tube. 3. That transfer is zygote intra fallopian transfer, abbreviated ZIFT. 4. Embryos with more than 8 blastomeres go into the uterus instead, which is intra uterine transfer. 5. The blastomere count is what decides between the two, so it is the detail worth remembering. _Source: NCERT Class 12 Biology Ch3 'Reproductive Health', section 3.5_