The molecular explanation for narcolepsy is that
A)certain brain cells have many extra orexin/hypocretin receptors,so these cells receive too many messages to sleep.
B)the orexin/hypocretin receptor is missing,abnormal in structure,or unable to move to the surface of certain brain cells,blocking signals to stay awake.
C)a gene is missing in chromosome 6 that encodes the protein narcoleptin.
D)a viral infection activates genes that promote sleep.

Question

Quizplus · Accepted Answer

The molecular explanation for narcolepsy is that the orexin/hypocretin receptor is missing, abnormal in structure, or unable to move to the surface of certain brain cells, blocking signals to stay awake. This is due to an autoimmune attack on the neurons that produce orexin/hypocretin, causing a deficiency in this neurotransmitter.

The Molecular Explanation for Narcolepsy Is That