MHT CET 202625 AprilEvening Shift
- Exam
- MHT CET
- Year
- 2026
- Date
- 25 April
- Shift
- Evening Shift
- Subject
- Biology
- Chapter
- Molecular Basis of Inheritance
MHT CET 2026 · 25 April · Evening Shift · Biology · Molecular Basis of Inheritance
Formation of peptide bond between amino acids during translocation...
Formation of peptide bond between amino acids during translocation is catalyzed by __________.
Options
- ARibozyme
- BPolynucleotide phosphorylase
- CPermease
- DTransacetylase
Correct answer
A. Ribozyme
Step-by-step solution
During translation, the formation of a peptide bond between amino acids is catalyzed by the enzyme peptidyl transferase.
Peptidyl transferase is an integral part of the large ribosomal subunit. In prokaryotes, it is the 23S rRNA, and in eukaryotes, it is the 28S rRNA.
Since it is an RNA molecule that acts as an enzyme, it is known as a ribozyme.
Polynucleotide phosphorylase is an enzyme that synthesizes RNA without a template.
Permease is a membrane transport protein that facilitates the entry of lactose into the cell.
Transacetylase is an enzyme involved in the lac operon.
Answer: Ribozyme
Peptidyl transferase is an integral part of the large ribosomal subunit. In prokaryotes, it is the 23S rRNA, and in eukaryotes, it is the 28S rRNA.
Since it is an RNA molecule that acts as an enzyme, it is known as a ribozyme.
Polynucleotide phosphorylase is an enzyme that synthesizes RNA without a template.
Permease is a membrane transport protein that facilitates the entry of lactose into the cell.
Transacetylase is an enzyme involved in the lac operon.
Answer: Ribozyme