<prompt> Which of the following is not a channelopathy?-Cystic fibrosisLiddles syndromeTay-sachs diseaseHypokalemic periodic paralysis  <response>: Channelopathies are diseases caused by the disturbed function of ion channel subunits or the proteins that regulate them. Tay-Sachs disease is a GM2 gangliosidosis caused by the deficiency of enzyme hexosaminidase, subunit. 