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Class 12BiologyHuman ReproductionPregnancy and Embryonic development
Medium

The allantois has the similar layers as present in the yolk sac. These are

  • A
    Outer mesoderm and inner endoderm
  • B
    Outer endoderm and inner mesoderm
  • C
    Outer endoderm and inner ectoderm
  • D
    Outer endoderm and inner endoderm
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Class 12 Questions

Class 12

Biology Questions

Chapter

Human Reproduction

Subtopic

Pregnancy and Embryonic development

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