Question

multiple choice question
nucleic acids contain which functional group?
amino
carboxyl
phosphate

Explanation:

Nucleic acids (DNA and RNA) are composed of nucleotides. Each nucleotide contains a phosphate - group, a sugar molecule, and a nitrogen - containing base. Amino groups are found in amino acids, and carboxyl groups are also characteristic of amino acids and some other organic compounds. Phosphates are key components of nucleic acids.

Answer:

C. Phosphate