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In mammals, primitive streak gives rise ...

In mammals, primitive streak gives rise to

A

Ectoderm

B

Mesoderm

C

Endoderm

D

Germ layers

Text Solution

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The correct Answer is:
A
When the early embryo consists of only tissue layers, ectoderm and endoderm, a longitudinal thickening appears as the result of multiplication of the ectodermal cell. This thickening, the primitive streak gives rise to the notochord.
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