Initiation of gastrulation in humans is marked by formation of

Biology · Class 12 · CBSEMock Test 29 Zoology

Initiation of gastrulation in humans is marked by formation of
  1. differentiation of inner cell mass into epiblast and hypoblast
  2. formation of three germ layers
  3. formation of primitive streak
  4. formation of chorionic villi

Answer

(C) formation of primitive streak

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