Cell Biology 7S.2 0.0 / 5 ? BiologyPrinciples of animal developmentUniversityAll boards Created by: Jasmine FinchCreated on: 24-05-20 14:58 First multicellular genome to be sequenced Caenothabditis elegans 1 of 14 Drosophila OTD are similar to human OTX1 and OTX2 genes 2 of 14 spacial patterning cells become specialised depending on their positions in the embryo. extracellular signals can induce cells to change 3 of 14 combinational signalling and cell memory multiple signals concurring on one cell give rise to different cells. Cell memory will respond to a stimulus based on a certain memory 4 of 14 slight inital differences may be amplified by positive feedback 5 of 14 Asymmetric division sister cells differ 6 of 14 Symmetric division only become different due to after birth influences 7 of 14 What are the 4 types of tissue? Connective, epithelial, muscle and nervous 8 of 14 What 3 families does the cytoskeleton depend on? Actin filaments, microtubules and intemediate filaments 9 of 14 cell-cell junctions one end can bind the transmembrane sdhesion protein on another cell and another one can bind to the intracellular cytoskeleton 10 of 14 cadherins physically associate across cell junctions to form a molecular velcro 11 of 14 Adherens junctions cadherins link adherens junctions with the actin cytoskeleton 12 of 14 Tight junctions maintain permemibility barriers across cells 13 of 14 Gap junctions allow small solutes to travel between cells . High cytosolic Ca2+ signals cell damage and closes gap junctions 14 of 14
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