Misfolded prion proteins may be toxic to brain cells because these
A) can be passed from neuron to neuron.
B) trigger apoptosis in a neuron.
C) overstimulate glutamate receptors.
D) block sodium currents through the neuron membrane.
E) damage lysosomes leading to neuron swelling.
Answer: B
Rationale: Misfolded prion proteins may be toxic to brain cells because these trigger apoptosis in a neuron.
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