Question

2 in nucleic acids dna and rna, the backbone is made up of a. nitrogenous bases and phosphates. b. nitrogenous bases and sugars. c. sugars and phosphates. d. nucleotides and amino acids.

Explanation:

Nucleic acids (DNA/RNA) have a backbone formed by alternating sugar molecules (deoxyribose for DNA, ribose for RNA) and phosphate groups. Nitrogenous bases are attached to the sugars but are not part of the backbone structure, and amino acids are components of proteins, not nucleic acids.

Answer:

c. sugars and phosphates.