What is the peculiarity of the structure of the DNA molecule. what are the components of nucleotides?

Deoxyribonucleic acid is a polymer, the monomer units of which are nucleotides. The peculiarity of this molecule is that its molecular weight is enormous, and its length is many times the length of the largest protein molecules. Each nucleotide includes three interconnected parts – a nitrogenous base, a carbohydrate (in this case, deoxyribose), and a phosphoric acid residue. It must be remembered that the nucleotide of a DNA molecule can include only one nitrogenous base.