Assertion: acetylcholine's role | /r/HasProperty | supported by the finding
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Source sentences:
text: The active role of AChRs in the formation of the postsynaptic scaffold is also supported by the finding that deletion of the gene encoding the AChR γ-subunit (Chrng), which largely prevents the assembly of functional AChRs during embryogenesis, results in continued growth of motor axons beyond the synaptic band and in aberrant nerve branching (264).