Question

reviewing the genetic code
the genetic code is based on sequences of three bases called codons
codons form a unit of the genetic code that determines a specific amino acid
amino acids are used to build

Explanation:

Amino acids are the building blocks of proteins. In the context of the genetic code, codons (sequences of three bases) code for specific amino acids, and these amino acids are then linked together to form proteins through processes like translation in cells.

Answer:

proteins