A mutation converts an AGA codon to a TAA codon . This mutation is a:Termination mutationNoncoding mutationNonsense mutationMissense mutation
Question
A mutation converts an AGA codon to a TAA codon . This mutation is a:Termination mutationNoncoding mutationNonsense mutationMissense mutation
Solution
This mutation is a Nonsense mutation.
Here's why:
The AGA codon codes for the amino acid Arginine. The TAA codon, however, is a stop codon, which signals the end of protein synthesis.
When a mutation changes a codon that specifies an amino acid into a stop codon, it's called a Nonsense mutation. This type of mutation can result in a nonfunctional protein because it can cause the protein to be shorter than it should be.
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