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2.Human Reproduction
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The extra-embryonic membranes of the mammalian embryo are derived from
A
Formative cells
B
Follicle cells
C
Inner cell mass
D
Trophoblast
(AIPMT-1994)
Solution
(d) Extraembryonic membranes are formed outside the embryo from the trophoblast only in amniotes $(reptiles, birds and mammals)$ and perform specific functions.
Standard 12
Biology
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