Which the following names is appropriate for the sequence 5′-G/ANNAUG -3′ in a mammalian mRNA? (1) Shine-Dalgarno sequence (2) Kozak sequence (3) Internal ribosome entry Sites (4) Translation termination site […]
Tag: post translational modification pyq
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CSIR NET Life Science Previous Year Questions and Solution on Molecular Biology
Peptidyl Transferase Activity in Prokaryotic Protein Synthesis
During protein synthesis in prokaryotes, the peptidyl transferase activity required for peptide bond is due to (1) ribosomal protein L26. (2) 16S ribosomal RNA. (3) 23S ribosomal RNA. (4) aminoacyltRNA. […]
CSIR NET Life Science Previous Year Questions and Solution on Molecular Biology
How E. coli Distinguishes Initiating and Internal Methionine Codons
During protein synthesis in E. coli the initiating methionine (AUG) and the internal methionine (AUG) codons of a given mRNA are distinguished by (1) fmet-tRNAf and met-tRNAm respectively (2) fmet-tRNAf , IF-2 versus […]
CSIR NET Life Science Previous Year Questions and Solution on Molecular Biology
Which RNA Carries Peptidyl Transferase Activity
Which one Of the following RNAs possesses the peptidyl transferase activity? (1) tRNA (2) 2.5S rRNA (3) 16S rRNA (4) 23S rRNA Introduction […]
CSIR NET Life Science Previous Year Questions and Solution on Molecular Biology
Which Statement About Eukaryotic Translation Is NOT True?
Which one of the following statements about eukaryotic translation is NOT true? (1) ribosome binding site on mRNA is called Kozak consensus sequences. (2) initiatortRNA is tRNAf-met (3) initiator amino […]
CSIR NET Life Science Previous Year Questions and Solution on Molecular Biology
Prokaryotic Translation Initiation: The Role of IF-2 and Initiator t-RNA
In prokaryotes IF-2 binds to (1) Initiator t-RNA and GTP (2) Amino acyl t-RNA and ATP (3) Ribosome and m-RNA (4) m-RNA and 30 S subunit of ribosome Introduction Protein […]
CSIR NET Life Science Previous Year Questions and Solution on Molecular Biology
Eukaryotic Translation Initiation: Beyond eIF2 and Met-tRNA
For translation initiation process besides elF2, Met-t- RNA eukaryotic 80-S ribosome also requires (1) GTP (2) ATP (3) CTP (4) UTP Introduction Translation initiation in eukaryotes is a highly regulated […]
CSIR NET Life Science Previous Year Questions and Solution on Molecular Biology
Minimum Number of NTPs Required for One Peptide Bond
What is the minimum number Of NTPs required for the formation of one peptide bond during protein synthesis? (1) One (2) Two (3) Four (4) Six Introduction Protein synthesis is […]
CSIR NET Life Science Previous Year Questions and Solution on Molecular Biology
During Each Cycle of elongation in Translation Ribosome Undergo conformational changes
During each cycle of chain elongation in translation, how many conformational changes does the ribosome undergo that are coupled to GTP hydrolysis? (1) Zero (2) one (3) Two (4) Three […]
CSIR NET Life Science Previous Year Questions and Solution on Molecular Biology
The mRNA Sequence and Its Translation Direction
If a sequence 5’- AAA(AAA)nAAAAAC-3′ was transcribed in cell free system and peptide obtained was partially hydrolyzed with carboxypeptidase, the result was an Asparagine residue and oligopeptide. It suggest the […]
