Question

question 12
dna is composed of units called ______.
sugars
amino acids
nucleotides
bases
lipids

Explanation:

DNA is a nucleic - acid polymer. Its basic building units are nucleotides, which consist of a sugar, a phosphate group, and a nitrogen - containing base. Sugars are part of nucleotides but not the whole unit. Amino acids are building blocks of proteins. Bases are part of nucleotides. Lipids are a different class of biological molecules.

Answer:

C. nucleotides