Biochemistry Rna Processing Online Exam Quiz
Biochemistry Rna Processing GK Quiz. Question and Answers related to Biochemistry Rna Processing. MCQ (Multiple Choice Questions with answers about Biochemistry Rna Processing
70S prokaryotic ribosome is the complex of ____________
Options
A : 30S + 50S
B : 30S + 40S
C : 20S + 60S
D : 20S + 30S
80S eukaryotic ribosome is the complex of ____________
Options
A : 60S and 40S
B : 40S and 20S
C : 60S and 50S
D : 30S and 20S
Which of the following is not involved in the post transcriptional processing of t-RNA?
Options
A : Base modulation
B : Attachment of CCA arm
C : Splicing
D : Attachment of poly-A tail
Which of the following is an incorrect statement about m-RNA?
Options
A : Cap is added to the 5’ end
B : Introns are removed and exons are spliced together
C : Histone mRNAs lack 5’ cap
D : Poly-A tail is added to the 3’ end
Which one of the following best describes the cap modification of eukaryotic mRNA?
Options
A : Modified guanine nucleotide added to the 3’ end of the transcript
B : Modified guanine nucleotide added to the 5’ end of the transcript
C : String of adenine nucleotides added to the 3’ end of the transcript
D : String of adenine nucleotides added to the 5’ end of the transcript
Which is the first nucleic acid synthesizing enzyme discovered?
Options
A : Polynucleotide phosphorylase
B : DNA polymerase
C : RNA polymerase
D : DNA ligase
What is the main function of t-RNA?
Options
A : Proof reading
B : Inhibits protein synthesis
C : Identifies amino acids and transport them to ribosomes
D : None of the mentioned
Which of the following statements regarding splicing in eukaryotes is correct?
Options
A : Several reactions in the splicing process involve hydrolysis of ATP
B : Exons are spliced out and introns are retained in the mature mRNA transcript
C : Splicing takes place in the cytosol
D : Small nuclear RNAs are retained in the mature mRNA transcript
Which type of splicing reaction requires a guanine nucleoside or nucleotide cofactor that is not used as a source of energy?
Options
A : Spliceosomal
B : Group I
C : Group II
D : Group IV
The largest class of introns which are found in nuclear mRNA primary transcript is?
Options
A : Spliceosomal introns
B : Group I introns
C : Group II introns
D : Group IV introns
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