Question

1. what are the three chemical molecules that make up the subunits of dna?

nitrogen base, lipids, and phosphate
sugar, nitrogen base, and amino acids
phosphate, protein, and nitrogen base
sugar, phosphate, and nitrogen base

Explanation:

The subunits of DNA are nucleotides. Each nucleotide is composed of a sugar (deoxyribose), a phosphate group, and a nitrogen - containing base. Lipids, amino acids, and proteins are not part of the basic structure of DNA subunits.

Answer:

D. sugar, phosphate, and nitrogen base