Anatomical Homology
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Transcript of Anatomical Homology
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Anatomical Homology
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Anatomical Homolgy
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Mandibular Arch (ventral)
Mandibular Arch (dorsal)
Hyoid Arch (dorsal)
Shark Meckel's cartilage
Palatoquadrate cartilage
Hyomandibular cartilage
Amphibian Articular (bone) Quadrate (bone)
Stapes
Mammal Malleus Incus Stapes
Embryonic Arches
Hyoid Arch
Mandibular Arch
Otic pit
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Fish Amphibian BirdReptile Pig Cow Rabbit Human
Von Baer - Comparative Embryology
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Anatomical Homology/Analogy
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wild-type Antennapediamutant
Fly heads
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Hoxb-4 knockoutwildtypemouse
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Gene/Gene Expression Homology
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Gene/Gene Expression Homology
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Signaling pathways
Drosophila (invertebrate) Xenopus (vertebrate)
dpp BMP-4(dorsalization) (ventralization)
SOG chordin(blocks dpp, ventralization) (blocks BMP-4, dorsalization)
tolloid (TLD) xolloid(cleaves SOG, dorsalization) (cleaves chordin, ventralization)