Answer:
in DNA. Adenine (A) and guanine (G) are double-ringed purines, and cytosine (C) and thymine (T) are smaller, ... The nucleotide is named according to the nitrogenous base it contains. (a) Each DNA nucleotide is made up of a sugar, a phosphate group ... A figure showing the structure of ribose and deoxyribose sugars.
Explanation:
