MHT CET Medical202622 April 2026Morning ShiftBiologyMolecular Basis of InheritanceActual
Match List I with List II List I (Binding site of ribosome) List II (Substances associated) (A). P-site (I). Amino-acetyl tRNA (B). A-site (II). Peptidyl tRNA (C). E-site (III). Exit Choose the correct answer from the options given below:
Options
- A(A) - (I), (B) - (II), (C) - (III)
- B(A) - (II), (B) - (I), (C) - (III)
- C(A) - (III), (B) - (II), (C) - (I)
- D(A) - (III), (B) - (I), (C) - (II)
Correct answer
B. (A) - (II), (B) - (I), (C) - (III)
Step-by-step solution
The ribosome has three binding sites for tRNA during translation: The P-site (peptidyl site) holds the tRNA carrying the growing polypeptide chain. Thus, (A) matches with (II). The A-site (aminoacyl site) holds the tRNA carrying the next amino acid to be added to the chain. Thus, (B) matches with (I). The E-site (exit site) is where discharged tRNAs leave the ribosome. Thus, (C) matches with (III). The correct matching is (A) - (II), (B) - (I), (C) - (III). Answer: (A) - (II), (B) - (I), (C) - (III)