alleryIn the In Vitro Fertilisation (IVF)/Test-Tube Baby programme, an early embryo with **up to 8 blastomeres** is transferred into the:
AFallopian tube (ZIFT)
BOvary
CUterus (IUT)
DVagina
Answer & Solution
Correct answer: A. Fallopian tube (ZIFT)
**Rule of thumb:** **≤8 blastomeres
→ fallopian tube** (ZIFT — Zygote Intra Fallopian Transfer).
**>8 blastomeres → uterus** (IUT — Intra Uterine Transfer).
The fallopian tube provides the natural early environment before uterine implantation.
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