Question
A particular mutation in DNA does not change the amino acid sequence in a protein
Answers
GPT-4o mini
A mutation in DNA that does not change the amino acid sequence of a protein is referred to as a **silent mutation**. These mutations typically occur in the DNA sequence but do not alter the protein that is produced because of the redundancy in the genetic code.
The genetic code is made up of codons, which are three-nucleotide sequences that correspond to specific amino acids. Because there are 64 possible codons but only 20 amino acids, some amino acids are encoded by multiple codons. For example, both GAA and GAG code for the amino acid glutamic acid. If a mutation changes one codon to another that encodes the same amino acid, it is classified as a silent mutation.
Silent mutations can occur in coding regions (exons) of genes or in introns, and they generally have no effect on the phenotype of the organism, although they can sometimes influence gene expression or mRNA stability in subtle ways.
The genetic code is made up of codons, which are three-nucleotide sequences that correspond to specific amino acids. Because there are 64 possible codons but only 20 amino acids, some amino acids are encoded by multiple codons. For example, both GAA and GAG code for the amino acid glutamic acid. If a mutation changes one codon to another that encodes the same amino acid, it is classified as a silent mutation.
Silent mutations can occur in coding regions (exons) of genes or in introns, and they generally have no effect on the phenotype of the organism, although they can sometimes influence gene expression or mRNA stability in subtle ways.