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OUTLINE 6 VI. Morphogenesis A. General features of gastrulation B. Cell movement

OUTLINE 6 VI. Morphogenesis A. General features of gastrulation B. Cell movement 1. extension and contraction 2. adhesion C. Gastrulation in the sea urchin D. Gastrulation in the frog E. Three layers of cells 1. ectoderm 2. mesoderm 3. endoderm F. Neurulation.

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OUTLINE 6 VI. Morphogenesis A. General features of gastrulation B. Cell movement

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  1. OUTLINE 6 VI. Morphogenesis A. General features of gastrulation B. Cell movement 1. extension and contraction 2. adhesion C. Gastrulation in the sea urchin D. Gastrulation in the frog E. Three layers of cells 1. ectoderm 2. mesoderm 3. endoderm F. Neurulation

  2. OUTLINE 5 V. Animal development: pattern A. Gametes 1. spermatazoan 2. ovum B. Fertilization overview C. Details of fertilization D. Cleavage 1. major features 2. patterns a. radial b. spiral 3. later stages of cleavage a. morula b. blastula (blastomere, blastocoel)

  3. Echinoderms Chordates Annelids Arthropods Mollusks Protostomes Deuterostomes Acoelomates TIME

  4. Fig. 32.7a Cells NOT totipotent Cells totipotent

  5. Fig. 47.6 Early cleavage stages

  6. Fig. 47.9 Gastrulation in the Sea urchin

  7. Sea urchin fertilization and early development

  8. Gastrulation in the frog Fig. 47.10

  9. Frog gastrulation (cross section)

  10. Fig. 47.16 Changes in cell shape during morphogenesis

  11. Fig. 47.11 Neurulation in the frog

  12. Gastrulation and neurulation in the frog

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