Which of the following descriptions best fits the class of molecules known as nucleotides?O a nitrogenous base and a phosphate groupO a nitrogenous base, a phosphate group, and a pentose sugarO a pentose sugar and a purine or pyrimidineO a nitrogenous base and a pentose sugar
The nucleotides are the molecules monomers of the nucleid acids (DNA and RNA). They are formed by a nucleoside (a nitrogeous base and a pentose sugar) linked to a phospate group.