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प्रश्न
What are the two layers formed from trophoblast differentiation during implantation?
पर्याय
Inner cell mass and blastocoel
Amnion and chorion
Cytotrophoblast and syncytiotrophoblast
Ectoderm and mesoderm
MCQ
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उत्तर
During implantation, the trophoblast differentiates into two distinct layers. The cytotrophoblast is the inner cellular layer that produces cells for trophoblast growth. The syncytiotrophoblast is the outer multinucleate layer that invades the endometrium and secretes hCG (human chorionic gonadotropin).
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