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National Repository of Grey Literature 1 records found  Search took 0.00 seconds. 
Mechanisms of symmetry breaking during embryogenesis
 Ždímalová, Michaela ; Lánský, Zdeněk (advisor) ; Búran, Peter (referee)
Left-right symmetry breaking is crucial for correct body development of many organisms, including humans. The fact that the left-right asymmetry is established consistently in all healthy individuals of given species fascinates researchers for a long time. Although several models offering a mechanistic insight to this phenomenon were proposed or already accepted, they lack a sufficient molecular description or do not explain all cases. A model of acto-myosin flows - intracellular counter-rotating flows driven by an active torque generation in acto-myosin cortex - leading to the left-right symmetry breaking during embryogenesis is a topic of particular interest in current research. This thesis introduces the problematics of acto-myosin flows in a context of the previous research related to the left-right symmetry breaking. Since the left-right asymmetry is tightly associated with chirality at different scales, this thesis also discusses the current knowledge about possible processes of propagating chirality of molecules to the larger scale. 1
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