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Creating Body Plans

This resource offers a comprehensive overview of early embryo development, focusing on master genes such as Hox and Sonic Hedgehog, essential processes from fertilization to placenta formation, and the role of cell signaling. It includes several informative videos, detailed images of cleavage stages, blastocysts, and the formation of germ layers (endoderm, mesoderm, ectoderm). The provided links lead to valuable visual aids that enhance understanding of complex biological concepts related to embryogenesis.

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Creating Body Plans

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  1. Creating Body Plans By NikiStriar, Rachel Fyler, and Julie Henry

  2. Overview • Master Genes • Hox and Sonic Hedgehog • Early Embryo Development • Fertilization to Placenta Formation • Cell Signaling

  3. Hox Genes

  4. Hedgehog Genes

  5. Early Embryo Development • Fertilization Summary Video • http://www.youtube.com/watch?v=0LlEEPb2glY

  6. Cleavage • http://fertilitylabinsider.com/wp-content/uploads/labeled-cleavage-stage-embryos-from-Bob-S-300x190.jpg

  7. Early Blastocyst http://fertilitylabinsider.com/wp-content/uploads/Labeled-morula-image-from-Bob-S-300x221.jpg

  8. Implantation • http://www.embryology.ch/images/gimgnidation/07resume/01.gif

  9. Primitive Streak • http://www.luc.edu/faculty/wwasser/dev/avgast.gif

  10. Endoderm, Mesoderm, and Ectoderm • http://apbrwww5.apsu.edu/thompsonj/Anatomy%20&%20Physiology/2010/2010%20Exam%20Reviews/Exam%201%20Review/04-13_EmbryoTissue_1.JPG

  11. Summary Video • http://www.youtube.com/watch?v=nAP_Oat7SMI • Summarizes Early Embryo Development

  12. Video of Growth Cone Collapse and Retraction • http://vision.ucsf.edu/sretavan/sretavancollapse.html

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