In the human embryo, where are the extra-embr | vedclass

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(B) In the human embryo, the blastocyst consists of an outer layer of cells called the $Trophoblast$ and an inner group of cells attached to it called

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Trophoblast

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(B) In the human embryo, the blastocyst consists of an outer layer of cells called the $Trophoblast$ and an inner group of cells attached to it called the $Inner 	ext{ } cell 	ext{ } mass$. The $Trophoblast$ layer gets attached to the endometrium, and the cells of the $Trophoblast$ differentiate to form the extra-embryonic membranes (such as the amnion, chorion, yolk sac, and allantois) which protect and nourish the developing embryo. Therefore, the correct answer is $B$.

In the human embryo, where are the extra-embryonic membranes formed?

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