Some amino acids are coded by more than one codon, hence code is degenerate/unambigous.

Explanation

### Step-by-Step Text Solution:

1. **Understanding Codons**: Codons are sequences of three nucleotides in mRNA that correspond to specific amino acids. Each amino acid can be coded by one or more codons.

2. **Degenerate Code**: The term "degenerate" refers to the genetic code's ability to have multiple codons that can code for the same amino acid. For example, the amino acid valine is encoded by four different codons: GUU, GUC, GUA, and GUG. This means that valine can be specified by any of these four codons.

3. **Unambiguous Code**: The term "unambiguous" indicates that each codon corresponds to only one specific amino acid. For instance, the codon GUU will always code for valine and will not code for any other amino acid such as phenylalanine or leucine. This ensures that the genetic code is precise.

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