BIO 124 Chapter Notes - Chapter 16: Critical Role, Pattern Formation, Morphogen
24 Mar 2017
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Bio 124 - chapter 16 notes development. In the process called induction, signal molecules from embryonic cells cause transcriptional changes in nearby target cells: thus, interactions between cells induce differentiation of specialized cell types. It is known to occur also in fungi and yeasts. In vertebrates, apoptosis is essential for normal nervous system development and morphogenesis of hands and feet (or paws: in the case of humans, failure to appropriate apoptosis can result in webbed hands and feet. Pattern formation: setting up the body plan: pattern formation is the development of a spatial organization of tissues and organs, positional information, the molecular cues that control pattern formation, tells a cell its. The life cycle of drosophila: fruit flies and other arthropods have a modular structure, composed of an ordered series of segments, head, thorax, and abdomen, anterior-posterior axis, dorsal-ventral left-right.
