Gujarati
2.Human Reproduction
normal

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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