Question

At the time of completion of protein synthesis, the sequence in which they leave the ribosome is:

• A. Polypeptide chain, m-RNA, t-RNA
• B. t-RNA, m-RNA, Polypeptide chain
• C. Polypeptide chain, t-RNA, m-RNA
• D. m-RNA, Polypeptide chain, t-RNA

Hint:

Release order: Product (Protein) $\rightarrow$ Tool (tRNA) $\rightarrow$ Blueprint (mRNA).

Answer 1

The Correct Option is C

Step 1: Concept
Translation termination occurs when a release factor recognizes a stop codon, triggering the disassembly of the translation complex.

Step 2: Meaning
The sequence of dissociation ensures that the finished product is released before the machinery resets.

Step 3: Analysis
First, the completed polypeptide chain is hydrolyzed from the P-site tRNA and released. Then, the deacylated tRNA leaves the ribosome. Finally, the mRNA dissociates as the ribosomal subunits separate.

Step 4: Conclusion
The logical order of departure is Polypeptide $\rightarrow$ tRNA $\rightarrow$ mRNA. Final Answer: (C)