Biochemistry Protein Synthesis Online Exam Quiz
Biochemistry Protein Synthesis GK Quiz. Question and Answers related to Biochemistry Protein Synthesis. MCQ (Multiple Choice Questions with answers about Biochemistry Protein Synthesis
In how many steps protein biosynthesis takes place?
Options
A : 2
B : 3
C : 4
D : 5
Bacteria have ____________
Options
A : 70S ribosomes
B : 60S ribosomes
C : 50S ribosomes
D : 80S ribosomes
Which of the following blocks the peptidyl transferase of 80S eukaryotic ribosomes?
Options
A : Chloramphenicol
B : Cycloheximide
C : Diphtheria toxin
D : Ricin
Which of the following catalyzes ADP-ribosylation of a diphthamide residue?
Options
A : Chloramphenicol
B : Cycloheximide
C : Diphtheria toxin
D : Ricin
Which of the following inactivates the 60S subunit of eukaryotic ribosomes?
Options
A : Chloramphenicol
B : Cycloheximide
C : Diphtheria toxin
D : Ricin
Which of the following inhibits initiation at higher concentrations?
Options
A : Chloramphenicol
B : Streptomycin
C : Diphtheria toxin
D : Ricin
What is the role of small nuclear RNAs in protein synthesis?
Options
A : It translates genetic code to a specific amino acid
B : It modifies mRNA molecules prior to protein synthesis
C : It provides a genetic blueprint for the protein
D : It catalyzes the process
What is the role of mRNA in protein synthesis?
Options
A : It translates genetic code to a specific amino acid
B : It modifies mRNA molecules prior to protein synthesis
C : It provides a genetic blueprint for the protein
D : It catalyzes the process
Which is the third elongation step in bacteria?
Options
A : Peptide bond formation
B : Binding of an incoming aminoacyl t-RNA
C : Translocation
D : None of the mentioned
The eukaryotic mRNA binding to the ribosomes is facilitated by ____________
Options
A : T-RNA
B : Poly-A tail
C : Shine Dalgarno sequence
D : 7-methyl guanosine cap
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