The basic repeating unit of nucleic acids are known as nucleotides. A nucleotide consists of three distinct chemical groups, a 5-carbon sugar (ribose or deoxyribose), a nitrogen-rich base - (cytosine (C), guanine (G), adenine (A), thymine (T) in DNA or uracil (U) instead of T (in RNA), and phosphate.
Basic unit of a nucleic acid is a nucleotide . The nucleotides are attached in a series to form a polymer called nucleic acid. There are ribonucleic acid and deoxyribonucleic acid.
