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The extra-embryonic membranes of mammalian embryo are derived from |
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a) |
Trophoblast |
b) |
Follicle cells |
c) |
Formative cells |
d) |
Inner cell mass |
|
The extra-embryonic membranes of mammalian embryo are derived from |
|||||||
|
a) |
Trophoblast |
b) |
Follicle cells |
c) |
Formative cells |
d) |
Inner cell mass |
(a)
Trophoblast ia an epithelium surrounding the mammalian blastocyst forming outer layer of chorion and becoming part of the embryonic component of extra-embryonic membranes.