A mutation converts an AGA codon to a TAA codon . This mutation is a:Nonsense mutationTermination mutationNoncoding mutationMissense mutation
Question
A mutation converts an AGA codon to a TAA codon . This mutation is a:Nonsense mutationTermination mutationNoncoding mutationMissense mutation
Solution
This mutation is a Nonsense mutation.
Here's why:
- The AGA codon codes for the amino acid Arginine.
- The TAA codon is a stop codon, which does not code for any amino acid but signals the end of protein synthesis.
- Therefore, the mutation changes a codon that originally specified an amino acid (Arginine) into a stop codon.
- This type of mutation is known as a Nonsense mutation because it creates a premature end to protein synthesis, often resulting in a nonfunctional protein.
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