What phenomenon describes when multiple codons correspond to the same amino acid?

The phenomenon where multiple codons correspond to the same amino acid is known as synonymous codons. This refers to the fact that the genetic code is degenerate, meaning that there are several different codons that can encode for the same amino acid. For example, the amino acid leucine can be encoded by six different codons: UUA, UUG, CUU, CUC, CUA, and CUG.

This redundancy in the genetic code allows for some variability in the genetic sequence without affecting the resulting protein, which can be advantageous for organisms. Synonymous codons can also influence gene expression and protein folding, depending on how they are utilized. Understanding synonymous codons is essential for studying protein synthesis and the overall genetics of organisms.