AP BIOLOGY

Detailed explanation-1: -The genetic code is said to be redundant in that the same amino acid residue can be encoded by multiple, so-called synonymous, codons. If all properties of synonymous codons were entirely equivalent, one would expect that they would be equally distributed along protein coding sequences.

Detailed explanation-2: -The genetic code is a degenerate code, which means that there is redundancy so that most amino acids are encoded by more than one triplet combination (codon). Although it is a redundant code, it is not an ambiguous code: under normal circumstances, a given codon encodes one and only one amino acid.

Detailed explanation-3: -The genetic code is highly redundant and unambiguous because it includes information on all possible combinations of amino acids. This allows for very low error rates in protein synthesis.