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Question

In which stage of development, the embryonic cells form the germinal layers by the movement?

A
Morula
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B
Blastula
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C
Gastrula
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D
Neurula
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Solution

The correct option is D Gastrula
Gastrulation is the phase during early embryonic development, where blastula, which is single-layered gets re-organized to form a three-layer structure, called as gastrula. These three germ layers are ectoderm, mesoderm and endoderm. Gastrulation takes place after cleavage and formation of blastula and primitive streak.
Thus, the correct option is (C).

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