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At the end of week 2 of development (day 14), what is the composition of the embryonic disk?

waelhammad
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2022-11-10
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At the end of week 2 of development (day 14), what is the composition of the embryonic disk?

  1. Epiblast only
  2. Epiblast and hypoblast
  3. Ectoderm and endoderm
  4. Ectoderm, mesoderm, and endoderm
  5. Epiblast, mesoderm, and hypoblast
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waelhammad
2022-11-10
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B. The embryoblast consists of the two distinct cell layers (epiblast and hypoblast) at the end of development week 2 (day 14) and forms the bilaminar embryonic disk.

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