A point mutation changes the DNA sequence CGA to CGT, but the same protein is still produced. Which point muta

Question

A point mutation changes the DNA sequence CGA to CGT, but the same protein is still produced. Which point mutation occurred?

GPT-5 mini · Answer

This is a silent (synonymous) point substitution: the third base changed A → T (a transversion). CGA and CGT both encode arginine (due to genetic-code degeneracy/wobble), so the amino acid — and thus the protein — is unchanged.

A point mutation changes the DNA sequence CGA to CGT, but the same protein is still produced. Which point mutation occurred?

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