The biosynthesis of cytidine 5′-triphosphate requires
(A) A ribose sugar, a phosphate group, and a nitrogen base
(B) A deoxyribose sugar, a phosphate group, and a nitrogen base
(C) A ribose sugar, phosphate groups, and a nitrogen base
(D) A deoxyribose sugar, phosphate groups, and a nitrogen base

The following synthetic pathway of nRNA pyrimidine, cytidine 5′ triphosphate, CTP. This pathway begins with the condensation of two small molecules by the enzyme aspartate transcarbamylase (ATCase).

Transcribed Image Text:

NH,—C−0—P—OH || Carbamyl phosphate + OH HOOC —CH, NH₂ I -СН СООН