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#Question id: 6966


During gastrulation in the frog, the very first cells to move into the interior of the embryo through the blastopore come from the surface layer of cells in the marginal zone; they will become:

#SCPH06 I Botany
  1. ectoderm

  2. mesoderm
  3. endoderm
  4. yolk

Answer:- Option(s): 3


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