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 (D)</p> Signup and view all the answers

At what stage is gastrulation initiated in mice?

<p>E14 (D)</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 (B)</p> Signup and view all the answers

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

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

What is the origin of the parietal endoderm?

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

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