Germ layer induction + gastrulation

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  • Created by: Sarah
  • Created on: 21-04-18 11:37
what forms from the ectoderm?
nervous system, pigment cells and the epidermis
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what are key processes to get a single cell --> embryo?
proliferation, migration, cell communication, tissue morphogenesis
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what is the first cell fate decision to be made?
whether to be a top cell (epiblast/animal) or bottom cell (hypoblast/vegetal)
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what forms the 3 germ layers?
the top layer- epiblast
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what does the mesoderm form?
kidneys, limbs, somites (skeletal muscle, smooth and cardiac) + blood
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what does the endoderm form?
gut, lung, pancreas and thyroid
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how do morphogens make cells different?
depending on the conc received by the cell it turns on different TFs
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what is the apparently uniform group of cells that you start with?
the morula (berry)
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how do you get so many cells in early embryogenesis?
mitotic divisions (proliferation)
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why is the zygote already polarised?
unequal distribution of cytoplasmic components
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Card 2

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what are key processes to get a single cell --> embryo?

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proliferation, migration, cell communication, tissue morphogenesis

Card 3

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what is the first cell fate decision to be made?

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Card 4

Front

what forms the 3 germ layers?

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Card 5

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what does the mesoderm form?

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