Mouse Development Lecture 3: Early Post-Implantation
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Questions and Answers

In which stage of mouse development is the primitive streak formed?

  • E11
  • E6.5 (correct)
  • E3.5
  • E14
  • What is the shape of the pluripotent epiblast during early post-implantation development of human embryos?

  • Disc (correct)
  • Sphere
  • Oval
  • Cylinder
  • By what stage has the hypoblast formed a prospective yolk sac in mice?

  • E18.5
  • E14
  • E11 (correct)
  • E6.5
  • Where are PGCs specified in monkey embryos?

    <p>In a population of amniotic cells</p> Signup and view all the answers

    At what stage is gastrulation initiated in mice?

    <p>E14</p> Signup and view all the answers

    What is the stage of development at which the blastocyst is ready to implant into the uterus?

    <p>E4.5 in mice and E7 in humans</p> Signup and view all the answers

    Which tissue is contiguous to the epiblast and undergoes lumen formation?

    <p>Extra-embryonic ectoderm</p> Signup and view all the answers

    What is the origin of the parietal endoderm?

    <p>Primitive endoderm</p> Signup and view all the answers

    What is the result of the fusion of the extra-embryonic ectoderm and epiblast cavities?

    <p>The formation of the pro-amniotic cavity</p> Signup and view all the answers

    What is the function of the distal (DVE) and anterior (AVE) visceral endoderm cells?

    <p>To migrate towards the epiblast–extra-embryonic ectoderm boundary</p> Signup and view all the answers

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