Home ยป Nucleotides are building blocks of nucleic acids. Each nucleotide is a composite molecule formed by Biomolecules MCQs Nucleotides are building blocks of nucleic acids. Each nucleotide is a composite molecule formed by December 27, 2021 1 View Q. Nucleotides are building blocks of nucleic acids. Each nucleotide is a composite molecule formed by base- sugar- phosphatebase- sugar- OHsugar-phosphate(base sugar phosphate)n Answer: base- sugar- phosphate