which is a property of the FAS domain of lymphocytes?

which is a property of the FAS domain of  lymphocytes?
   a. the are antiapoptotic
   b. they are mitogens
   c. the are mitochondrial membrane associated proteins
   d.they bind to the death receptor
   e. they are part of the intrinsic pathway of apoptosis

which proteins are not involved in programmed cell death
   a. IAP
   b. apoptosome
   c. cytochrome c
   d. BH domain proteins
f.   caspase
f. phospholipase

 patient with heart disease presents with arrhythmic, ventricular fibrillation. Following a biopsy of the diseased ventricles, antibody-directed analysis (WESTERN) reveals quantitative reduction in the gap junction protein connexin43. Transport of which solute could be disrupted between the affected cardiomyocytes?
a. sodium
b. potassium
c. Ca2+
d.cholesterol
e. hemoglobin