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2.Human Reproduction

normal

Chorion is composed of

A

Cytotrophoderm

B

Syncytial trophoblast

C

Outer ectoderm and somatic mesoderm

D

All the above

Solution

(c)Chorion is the outermost extra embryonic membrane of amniotes enclosing the embryo and all its other membranes.

Std 12

Biology

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