Final answer:
The student's error is stating the translation stages out of order; the correct sequence is initiation, elongation, and then termination. Initiation involves the assembly of the translation complex and must occur before elongation and termination.
Step-by-step explanation:
The student described the translation process in the incorrect order, suggesting that the sequence of stages is elongation, initiation, and termination. The statement that describes the error is: Initiation occurs before elongation. The correct order of steps in the translation process is: initiation, elongation, and termination.
In initiation, a complex consisting of the ribosome, mRNA, initiation factors, and tRNA assembles at the start codon of the mRNA. Once this initiation complex is formed, elongation begins, where amino acids are added to the growing polypeptide chain in a sequence determined by the codons on the mRNA. Finally, when a stop codon is reached on the mRNA, the process reaches termination, where the completed polypeptide is released.