Question

Nucleotides are building blocks of nucleic acids. Which of the following correctly represents the structure of nucleic acids?

• A. $\text{Base - Sugar -OH}$
• B. $\text{Base - Sugar - Phosphate}$
• C. $\text{Sugar - Phosphate}$
• D. ${\text{(Base - Sugar - Phosphate)}}_n$

Answer 1

The correct option is D ${\text{(Base - Sugar - Phosphate)}}_n$

Nucleotides are the monomers, or subunits, of nucleic acids like DNA and RNA. Each nucleotide is composed of a nitrogenous base (purine or pyrimidine), a five-carbon sugar (ribose or deoxyribose), and a phosphate group. 'n' is the number of nucleotides join to form a nucleic acid.