(b) For successful pregnancy, at what phase of the menstrual cycle an early embryo (up to 3 blastomeres) should be implanted in the uterus (IUT) of a human female who has opted for Assisted Reproductive Technology (ART)? Support your answer with a reason.
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Solution and Explanation
- Phase: Luteal phase (Day 15–28).
- Reason: During this phase, the endometrium is thick and rich in blood supply, suitable for implantation and nourishment of the embryo.
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