Final answer:
It appears there is a typo in the question regarding the DNA sequence provided. The N-terminal amino acid is deduced from an mRNA sequence. For the DNA sequence given, after transcription, the mRNA would be 5'-CAU|UGC|CGA-3', corresponding to His-Cys-Arg, with His being the N-terminal amino acid if this were the start of the coding sequence.
Step-by-step explanation:
The student asked about the N-terminal amino acid for the DNA sequence 5'-GTA|ACG|GCT-3'. However, the question seems to involve a typo as DNA sequences do not directly code for amino acids; rather, the transcribed mRNA sequence does. Assuming the sequence is DNA and translating it to the corresponding mRNA sequence, we would get 5'-CAU|UGC|CGA-3', as 'A' pairs with 'U' in RNA and 'C' with 'G'. Referencing a standard genetic code chart, these codons translate to the amino acids His-Cys-Arg. Nonetheless, the original question may have intended to provide an mRNA sequence instead. In that case, the sequence would be directly read off the mRNA. The N-terminal amino acid is the one that corresponds to the start codon (AUG in mRNA), which codes for methionine (Met).