This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Structure and function of protein, Subject name: Biochemistry
[{'content': 'Co-translational inseion is seen with \nSelect and explain. \nA. Translocon, B. Chaperons, C. Ubiquitin, D. Mannose 6- P', 'role': 'user'}, {'content': 'Answer: A \nExplanation: The signal hypothesis states that protein is inseed into ER membrane at the same time its mRNA being translated on polyribosomes known as " co-translational inseion ". This is translocation endoplasmic reticulum. Components: N terminal signal peptide: Polyribosomes SRP SRP-R Sec 61 translocon TRAM TRAP proteins Reference: Harper; 30th edition', 'role': 'assistant'}]