Extra-embryonic membranes of the mammalian embryo are derived from
A
Inner cell mass
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B
Trophoblast
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C
Formative cells
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D
Follicle cells
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Solution
The correct option is B Trophoblast The 2 of the 4 four extraembryonic membranes which are produced from the trophoblast. The peripheral cells present in morula become the trophoblast (trophectoderm).