Developmental Biology and Stem Cells: Introduction to Reproductive System
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Questions and Answers

What direction does the primitive streak establish in the embryo?

  • Caudal-cranial direction (correct)
  • Rostral-caudal direction
  • Left-right direction
  • Dorsal-ventral direction

    • During which process does the formation of a trilaminar embryo occur?

  • Somite formation
  • Gastrulation (correct)
  • Neurulation
  • Primitive streak formation

    • What is the result of the proliferation and migration of cells from the epiblast to the median of the embryonic disc?

  • Formation of notochord
  • Neurulation
  • Formation of somites
  • Primitive streak formation (correct)

    • During which stage does the formation of the notochord occur?

    <p>Gastrulation</p> Signup and view all the answers

    What is the role of Hensen's node in the embryo?

    <p>Formation of neural ectoderm</p> Signup and view all the answers

    What is the correct sequence of embryonic development?

    <p>Primitive streak formation -&gt; Gastrulation -&gt; Neurulation</p> Signup and view all the answers

    What is the result of the elongation of the primitive streak?

    <p>Addition of cells to its caudal end</p> Signup and view all the answers

    During which stage does the formation of somites occur?

    <p>Trilaminar embryo formation</p> Signup and view all the answers

    What is the importance of the primitive streak in the embryo?

    <p>Establishment of caudal-cranial direction</p> Signup and view all the answers

    What is the relationship between the trilaminar embryo and somite formation?

    <p>Trilaminar embryo formation occurs before somite formation</p> Signup and view all the answers

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