what is the building blocks of dna
Rating Newest Oldest. Best Answer: Nucleotides are the building blocks of DNA, these nucleotides are formed by three parts: 1) A Nitrogenous Base, that are divided in Purines (Adenine, Guanine) and Pyrimidines ( Cytosine, Thymine, Uracil) 2) 1 Molecule of Phosporic Acid (in its Phosphate form) joined by ester bonds to 3) below.