Using either names or structures, complete pathways for the conversion of uracil to dTTP and to dCTP.
(1) Uridine + ATP >
(2) dCMP + H2O >
(3) UTP + Glu + ATP >
(4) Uracil + ribose-1-phosphate >

Pairs
a. Uridine + Pi
b. UMP + ADP
c. CTP + Glu + ADP + Pi
d. dUMP + NH₃