In vitro fertilization is a technique that involves transfer of which one of the following into the fallopian tube?
Embryo only, up to 8 cell stage
Either zygote or early embryo upto 8 cell stage
Embryo of 32 cell stage
Zygote only
According to the NCERT text, in the test tube baby programme (IVF), the zygote or early embryos (with up to 8 blastomeres) are transferred into the fallopian tube; this process is called Zygote Intra Fallopian Transfer (ZIFT). Embryos with more than 8 blastomeres are transferred into the uterus (IUT).
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