Two signaling proteins,agrin and neuregulin,have been identified in studies of neuromuscular junction development.In the absence of neuregulin:
A)Schwann cells die.
B)postsynaptic structures do not form in muscle cells.
C)the acetylcholine receptor protein is not synthesized.
D)all of the above

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The Answer of Two signaling proteins,agrin and neuregulin,have been identified in studies of neuromuscular junction development.In the absence of neuregulin:
A)Schwann cells die.
B)postsynaptic structures do not form in muscle cells.
C)the acetylcholine receptor protein is not synthesized.
D)all of the above

Two Signaling Proteins,agrin and Neuregulin,have Been Identified in Studies of Neuromuscular