MCAT Question of the Day
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    Q:

    		 A mutation is discovered which results in the myelin sheath overgrowing and covering all the space along the axon where there would normally be Nodes of Ranvier. Which of the following would be expected of such a neuron?
    		 

    A

    		 close-to-normal functioning as Nodes of Ranvier are not an essential component of signal propagation down an axon

    B

    		 repeated spontaneous depolarization and signal transmission down the axon

    C

    		 inability to be stimulated by an action potential

    D

    		 inability to propagate an action potential down the axon



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