Question

part a a ____ is to a nucleic acid as an amino acid is to a polypeptide. options: purine, base, pyrimidine, nucleotide (with submit, request answer, provide feedback buttons)

Explanation:

Amino acids are the building blocks (monomers) of polypeptides (polymers). Similarly, nucleotides are the building blocks (monomers) of nucleic acids (polymers). Purines, pyrimidines, and bases are components of nucleotides, not the direct monomers of nucleic acids like nucleotides are. So the relationship is analogous to amino acid - polypeptide, so the answer is nucleotide.

Answer:

nucleotide