Chick Development

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Chick Development (representative of
reptile/bird/mammal)

• Macrolecithal egg (most mammals are
  microlecithal )
• Meroblastic cleavage (most mammals are
  holoblastic)
• Primitive streak gastrulation (all reptiles,
  birds, mammals)

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Chick Whole Mounts
24 h 33 h 72 H 96 H
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24-Hour Chick
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Mesodermal derivatives
Ectodermal derivatives
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Extraembryonic regions
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33-Hour Chick
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Ectodermal derivatives
Mesodermal derivatives
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Endodermal derivatives
Extraembryonic regions
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72-Hour Chick
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Brain and Sensory Structures
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Limb buds, tail bud and somites
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96-Hour Chick
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Brain and Sensory Structures
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Limb buds, tail bud, somites, and allantois
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Chambers of the heart
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Serial Cross Sections - 33 hr Chick
Movie
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Mammal Development