Answer:
Dna is composed of repeating structural units called nucleotides.
Step-by-step explanation:
Nucleic acids are formed by the following elements: Carbon (C), hydrogen (H), oxygen (O), nitrogen (N) and phosphorus (P). These elements combine and constitute the basic units, called nucleotides. DNA is formed by two complementary nucleotide chains that form a double helix and encodes all of the organism's genetic information through its nucleotide sequence. Nucleotides are the molecules that make up DNA. They are formed by a phosphate group, a sugar (deoxyribose) and a nitrogen base. In that sense, we can say that DNA operates as a nucleotide template.