Nucleic acids are macromolecules composed by a sugar chain in which each unit is a sugar ring bonded to one of five bases and a phosphate that bond monomers between each other. When the nucleic acid is DNA the ring of sugar is desoxiribose, the bases are Adenin, Thymin, Cytosin and Guanin. When the nucleic acid is RNA the ribose and bases are Adenin, Uracil, Cytosine and Guanin.
The correct answer for the question above is letter C. Nucleic acids is a macro molecules. It have a <span>basic unit that is composed of phosphate, a sugar ring, and one of five different bases. I hope I have answered your question.</span>
