Suppose the following amino acid chain was created based on a student's transcription and translation:Tyr-Leu-Pro-MetIn the chain, which data show a possible source of error? Explain the error.

Answer:

The position of Met seems incorrect. The amino acid sequences of all proteins begin with Met because it is the amino acid that is attached to the anticodon for the AUG start codon. It looks like the student might have worked in a backward direction for transcription.