Chemistry NEET Full Syllabus Mock Test 180 Question New Syllabus Mock Test - 15 PCB Single Correct MCQ
Published on: August 13, 2026

Arrange the following steps involved in the process of translation according to their correct sequence:

A
Initiation of the polypeptide chain when the ribosome assembles around the target mRNA.
(F), , , (F), , ,
B
Elongation of the polypeptide chain as amino acids are added one by one.
, , , ,
C
Termination of translation when a stop codon is reached.
, (E) , (E)
, (E) , (E)
D
Binding of tRNA to mRNA by complementary base pairing.
(E) Release of the newly synthesized polypeptide and disassembly of the ribosomal complex.
(F) Charging of tRNA with the appropriate amino acid (aminoacylation).
Choose the correct sequence of steps from the options given below:
, , , (F), (F), ,

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Text Solution

Verified by Experts
The correct answer is:
A

Translation begins with the charging of tRNA, or aminoacylation (F), where each tRNA molecule is loaded with the appropriate amino acid. This step is crucial as it ensures that tRNAs are ready to deliver the correct amino acids during protein synthesis. Following this, the initiation phase occurs when the ribosome assembles around the target mRNA, positioning itself at the start codon. Next, the charged tRNA binds to mRNA by complementary base pairing , ensuring the correct placement of amino acids. The elongation phase involves the addition of amino acids to the growing polypeptide chain, one by one, facilitated by successive cycles of tRNA binding and peptide bond formation. . Translation ends with termination when a stop codon is reached, signaling the ribosome to halt synthesis. The newly synthesized polypeptide is then released, and the ribosomal complex disassembles (E).

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