"Some triplets code for the same amino acid. Sometimes, a DNA triplet is exchanged for another one that codes for the same amino acid. The function of the resulting protein may not be affected. If the DNA triplet codes for a different amino acid, the function of the protein could potentially be affected."
This highlights that while some changes may have little to no impact because of redundancy in the genetic code, others can result in significant alterations in protein structure and function.