Question
Suppose the following amino acid chain was created based on a student's transcription and translation: Tyr-Leu-Pro-Met In the chain, which data show a possible source of error? Explain the error.
Answer
4.7
(206 Votes)
Ernest
Master · Tutor for 5 years
Answer
The likely source of error is in the synthesized mRNA codons that produce this sequence. If the student used incorrect codons that do not match the expected ones for Tyr, Leu, Pro, or Met, it indicates a transcription or translation mistake.
Explanation
In the process of transcription and translation, DNA is first transcribed into mRNA, and then mRNA is translated into amino acids. Each set of three nucleotides (codons) on the mRNA corresponds to a specific amino acid. The error likely resides in the sequence of mRNA codons that were translated into the amino acid chain given, Tyr-Leu-Pro-Met. By examining the codons for these amino acids and comparing them to common codon tables, we may find inconsistencies that indicate an error.1. Tyrosine (Tyr) - Codons: UAU, UAC2. Leucine (Leu) - Codons: UUA, UUG, CUU, CUC, CUA, CUG3. Proline (Pro) - Codons: CCU, CCC, CCA, CCG4. Methionine (Met) - Codon: AUGTo find the error, we need to check the consistency of the codons that would typically translate to these amino acids from the mRNA sequence. Any deviation from expected sequences or the use of unlikely codons may indicate an error in the transcription or translation process.