8-26-11 - epiboly intercalation convergent extension...

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epiboly intercalation convergent extension invagination involution migration ingression proliferation Morphogenesis: The eight basic Movements.
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Metazoan developmental patterns phylogenetic tree metazoan
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Metazoan developmental patterns lack of symmetry
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Metazoan developmental patterns two germ layers radial symmetry
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Metazoan developmental patterns triploblast “mouth first”
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Metazoan developmental patterns triploblast “mouth second”
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Karl Ernst von Baer discovered the mammalian egg noted the similarities among early vertebrate embryos The embryological revolution – 1820’s “I have two small embryos preserved in alcohol, that I forgot to label. At present I am unable to determine the genus to which they belong. They may be lizards, small birds, or even mammals.” - von Baer , 1828
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Generating diversity: von Baer’s laws 2. Less general characters develop from the more general. vertebrate jaws (or lack thereof)
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This note was uploaded on 09/22/2011 for the course BIO 349 taught by Professor Wallingford during the Spring '09 term at University of Texas at Austin.

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8-26-11 - epiboly intercalation convergent extension...

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