A Levels Biology (9700)•9700/13/M/J/21
Explanation
Original DNA template sequence not provided Steps:
- Identify the original template strand sequence to transcribe into mRNA and translate to amino acids.
- Transcribe each choice's template to mRNA by base complementarity (A-U, T-A, G-C, C-G).
- Translate mRNA codons to amino acids using the genetic code.
- Compare translated polypeptides to original, counting differing amino acids.
Not enough information to determine which mutation results in one different amino acid, as the original sequence is referenced but not given.
Final answer: Not enough information.
Topic: Protein synthesis
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