145 + Interview Questions in TRANSCRIPTION-AND-TRANSLATION IN GENERAL AWARENESS Page 1 InterviewSolution

1.	DNA is transcribed by some viral RNA using the enzyme `:`A. LigaseB. EndonucleaseC. DNA polymeraseD. Reverse transcriptase
Answer» Correct Answer - D

Discussion

2.	In transcription in eukaryotes, heterogenous nuclear RNA (hnRNA)is transcribed byA. RNA polymerase IB. RNA polymerase IIC. RNA polymerase IIID. All of these
Answer» Correct Answer - B

Discussion

3.	Transcription in eukaryotes takes place in `:`A. matrixB. cytosolC. nucleusD. cytoplasm
Answer» Correct Answer - C

Discussion

4.	The diagram represents the "central dogma " of molecular biology . Choose the correct combination of labelling `:` A. (A)= Protein, (B)=RNA, (C )=DNA,(D)= Translation, (E )= TranscriptionB. (A)=RNA,(B)= DNA, (C )= Protein, (D) = Transcription, (E) = TranslationC. (A)=DNA, (B) RNA, (C )= Protein, (D) =Transcription, (E) = TranslationD. (A) = Transcription, (B) = Translaion, (C )= Protein, (D) =DNA, (E ) =RNA
Answer» Correct Answer - C

Discussion

5.	The process of reverse transcription was brougt to light by the work of `:`A. Archibald GarrodB. R.W. Holley and GroverC. Marshall and W. NirenbergD. H.W. Temin and D.Baltimore
Answer» Correct Answer - D

Discussion

6.	The enzyme that catalyses transcription of RNA in bacteria `:`A. DNA polymeraseB. RNA polymerase I and IIC. RNA polymease IID. DNA dependent RNA polymerase
Answer» Correct Answer - D

Discussion

7.	RNA polymerase II is responsible for transcription of `:`A. r-RNAB. hn-RNAC. t-RNAD. sn-RNA
Answer» Correct Answer - B

Discussion

8.	The enzyme (s) responsible for the transcription of snRNA in eukaryotes is/areA. RNA polymerase IB. RNA polymerase I and IIC. RNA polymerase IIID. RNA polymerase III
Answer» Correct Answer - D

Discussion

9.	Transcription requires which of these enzyme ?A. RNA based RNA polymeraseB. RNA based DNA polymeraseC. DNA based RNA polymeraseD. DNA based DNA polymerase
Answer» Correct Answer - C

Discussion

10.	Central dogma in molecular biology is `:`A. RNA `rarr` DNA `rarr `ProteinB. RNA `rarr` Protein `rarr` DNAC. DNA`rarr` RNA `rarr` ProteinD. DNA `rarr` Protein `rarr `RNA
Answer» Correct Answer - C

Discussion

11.	The enzyme responsible for reverse transcription isA. transcriptaseB. RNA polymeraseC. DNA polymeraseD. reverse transcriptase
Answer» Correct Answer - D

Discussion

12.	Assertion: RNA produced during transcription in eukaryotic cells cannot be straight away used in photosynethsis. Reason : RNA splicing phenomena helps in the removel of exons.A. Both the statements (A) and (B) are wrongB. Both the statements (A ) and (B) are correctC. Statement (A) is correct and (B) is wrongD. Statement (A) is wrong and (B) is correct
Answer» Correct Answer - C

Discussion

13.	Which one of the following pair of codons is correctly mathed with function or the signal for the particular amino acidA. UAG, UGA -StopB. GUU,GCU - AlanineC. UUA,UCA - LeucineD. AUG, ACG - Start `//` Methionine
Answer» Correct Answer - A

Discussion

14.	Select the correct statement regarding protein synthesis `:`A. When the small subunit of the ribosome encounters and m-RNA the process of translation beginsB. Peptidase catalyses the formation of peptide bondC. URTs are present betweent the start codon and stop codonD. At the end of translation the release factor binds to the initiation codon
Answer» Correct Answer - A

Discussion

15.	The central dogma of protein synthesis is `:`A. DNA RNA proteinB. RNA DNA proteinC. Protein RNA DNAD. Protein DNA RNA
Answer» Correct Answer - A

Discussion

16.	Some of the inhibitors of bacterial protein synthesis and their effect are listed in column I and column II below . Match them and choose the correct option from answer key `:` A. A=p,B=q,C=r,D=t,E=sB. A=r,B=p,C=t,D=s,E=qC. A=q,B=r,C=s,D=p,E=tD. A=s,B=t,C=p,D=q,E=r
Answer» Correct Answer - D

Discussion

17.	In bacteria, the formation of peptide bond during translation is effected byA. IsysozymeB. ribozymeC. nucleosomeD. microsome
Answer» Correct Answer - B

Discussion

18.	naturally occurring coding strand composed of alternating C and U residues would result in the formation ofA. a polypeptide containing alternating leu and ser residuesB. a polypeptide containing either leu or ser residuesC. a polypeptide containing only leu residuesD. a polypeptide containing only ser residues
Answer» Correct Answer - A

Discussion

19.	The process of DNA formation from RNA is called `:`A. transcriptionB. transversionC. translationD. reverse transcription
Answer» Correct Answer - D

Discussion

20.	Which codong is not an indicator of completion of protein synthesis ?A. UAGB. AUGC. UAAD. UGA
Answer» Correct Answer - B

Discussion

21.	Formation of polysome does not require `:`A. r-RNAB. m-RNAC. t-RNAD. sn-RNA
Answer» Correct Answer - D

Discussion

22.	Transcription of DNA is aided byA. ExonucleaseB. RecombinaseC. DNA polymeraseD. RNA polymerase
Answer» Correct Answer - D RNA polymerase is required for RNA synthesis.

Discussion

23.	Which of these is incorrect for translation ?A. It occurs inside the nucleusB. It is under operon regulationC. It occurs inside the cytoplasmD. Protein are synthesized from it
Answer» Correct Answer - A

Discussion

24.	Which statement about translation is not true ?A. There are both start and stop codonsB. It is RNA - directed polypeptide synthesisC. The same genetic code operates in all organismsD. An m-RNA molecule can be translated by only one ribosome at a time
Answer» Correct Answer - D

Discussion

25.	Out of the given four combination which one prossess the integrated protein synthesizing machinery `:`A. m-RNA,t-RNA and amino acidB. ribosomes, t-RNA and aminoa cidC. t-RNA , ribosome , nucleus andn m-RNAD. ribosomes, t-RNA,m-RNA and amino acid
Answer» Correct Answer - D

Discussion

26.	One of the following nitrogenous bases is not present in RNA, choose one `:`A. UracilB. GuanineC. CytosineD. Thymine
Answer» Correct Answer - D

Discussion

27.	Pyrimidines of RNA are represented by `:`A. uracil and guanineB. cytosine and uracilC. adenine and cytosineD. thymine and cytosine
Answer» Correct Answer - B

Discussion

28.	Which one of the following enzmes is responsible for the synthesis of DNA from RNA ?A. DNA ligaseB. DNA polymeraseC. RNA polymeraseD. Reverse transcriptase
Answer» Correct Answer - D

Discussion

29.	some amino acids are coded by more than one codon, hence the genetic code isA. degenerateB. specificC. univeralD. punctuated
Answer» Correct Answer - A

Discussion

30.	Three dimensional structure of t-RNA was proposed by `:`A. KimB. MonodC. GamowD. Hoagland
Answer» Correct Answer - A

Discussion

31.	In three dimensional view, the molecule of t-RNA is `:`A. E-shapedB. S-shapedC. Y-shapedD. L-shaped
Answer» Correct Answer - D

Discussion

32.	Anticodons are present on `:`A. r-RNAB. t-RNAC. mt-RNAD. m-RNA
Answer» Correct Answer - B

Discussion

33.	Genetic code consists of `:` `{:(1. "m- RNA",,,,2. "Iysosome"),(3. "cytosine and uracil",,,,4. "adenine and guanine"):}` Answer codes `:`A. 1 and 2 are correctB. 3 and 4 are correctC. 1 and 3 are correctD. 1,2, and 3 are correct
Answer» Correct Answer - B

Discussion

34.	What is not true for genetic codeA. It is degenerateB. It is unambiguousC. It is nearly universalD. A codon in m-RNA is read in a non-contiguous fashion
Answer» Correct Answer - D

Discussion

35.	Assertion : A monocistronic mRNA can produce several types of polypepitude chains . Reason : The terminator codon is present on the mRNA.A. statement A is wrong and B is correctB. both the statement A and B are correctC. both the statements A and B are wrongD. statement A is correct and B is wrong
Answer» Correct Answer - A

Discussion

36.	A sequence of three consecutive bases in a t-RNA molecule which specially binds to a complementary codon sequence in m-RNA is known as `:`A. tripletB. anticodonC. nonsense codonD. Termination codon
Answer» Correct Answer - B

Discussion

37.	The number of stop codons which do not code for any amino acid is `:`A. 1B. 2C. 3D. 4
Answer» Correct Answer - C

Discussion

38.	Which of the follownig codons has no t-RNA ?A. UAUB. UGUC. UAAD. UGC
Answer» Correct Answer - C

Discussion

39.	Triplet codon refers to sequence of three bases on `:`A. t-RNAB. m-RNAC. r-RNAD. all of these
Answer» Correct Answer - B

Discussion

40.	What is not true for genetic codeA. It is denerateB. It is unambiguousC. It is nearly universalD. A codon in m-RNA is read in a non-contiguous fashion
Answer» Correct Answer - D

Discussion

41.	Which triplet codon does not have t-RNA associated with it ?A. UAAB. UUAC. UUUD. AUU
Answer» Correct Answer - A

Discussion

42.	Identify the correct match betweent he codons and coding functions `:` A. A=1,B=4,C=2,D=3B. A=2,B=4,C=1,D=3C. A=4,B=3,C=2,D=1D. A=4,B=1,C=3,D=2
Answer» Correct Answer - B

Discussion

43.	The number of triplet codons having all the three bases same in 64 triplet codons is `:`A. 2B. 4C. 6D. 8
Answer» Correct Answer - B

Discussion

44.	Out of 64 codons , 61 codons code for 20 types of amino acid. It is calledA. wobbling of codonB. overlapping of genesC. unversality of codonsD. degeneracy of genetic code
Answer» Correct Answer - D

Discussion

45.	A codon consists of 3 bases and there are of 4 different kinds of bases in a nucleic acid altogether . How many codons will be there ?A. 22B. 60C. 64D. 86
Answer» Correct Answer - C

Discussion

46.	Sequence of amino acids in a polypeptide is determined by `:`A. m-RNAB. t-RNAC. r-RNAD. genetic code
Answer» Correct Answer - D

Discussion

47.	Two or more codons coding for one amino acid `:`A. nonambiguousB. nonsense codonC. degeneracy of codonD. nonoveralpping of codon
Answer» Correct Answer - C

Discussion

48.	In the coding dictionary, there are 64 codons as `:`A. genetci code is tripletB. 64 types of t-RNA are presentC. 64 amino acids are to be codedD. there are 44 nonsense codons and 20 sense codons
Answer» Correct Answer - A

Discussion

49.	The triplet codes for several amino acids are experimentally determined by `:`A. Watson and CrickB. Breadle and TatumC. Lederberg and TatumD. Nirenberg and associates
Answer» Correct Answer - D

Discussion

50.	Genetic code was discovered by `:`A. Watson and CrickB. Holley and OchoaC. Nirenberg and MatheiD. Holley, Nirenberg and Khorana
Answer» Correct Answer - C

Discussion

Explore topic-wise InterviewSolutions in .

DNA is transcribed by some viral RNA using the enzyme `:`A. LigaseB. EndonucleaseC. DNA polymeraseD. Reverse transcriptase

In transcription in eukaryotes, heterogenous nuclear RNA (hnRNA)is transcribed byA. RNA polymerase IB. RNA polymerase IIC. RNA polymerase IIID. All of these

Transcription in eukaryotes takes place in `:`A. matrixB. cytosolC. nucleusD. cytoplasm

The process of reverse transcription was brougt to light by the work of `:`A. Archibald GarrodB. R.W. Holley and GroverC. Marshall and W. NirenbergD. H.W. Temin and D.Baltimore

The enzyme that catalyses transcription of RNA in bacteria `:`A. DNA polymeraseB. RNA polymerase I and IIC. RNA polymease IID. DNA dependent RNA polymerase

RNA polymerase II is responsible for transcription of `:`A. r-RNAB. hn-RNAC. t-RNAD. sn-RNA

The enzyme (s) responsible for the transcription of snRNA in eukaryotes is/areA. RNA polymerase IB. RNA polymerase I and IIC. RNA polymerase IIID. RNA polymerase III

Transcription requires which of these enzyme ?A. RNA based RNA polymeraseB. RNA based DNA polymeraseC. DNA based RNA polymeraseD. DNA based DNA polymerase

Central dogma in molecular biology is `:`A. RNA `rarr` DNA `rarr `ProteinB. RNA `rarr` Protein `rarr` DNAC. DNA`rarr` RNA `rarr` ProteinD. DNA `rarr` Protein `rarr `RNA

The enzyme responsible for reverse transcription isA. transcriptaseB. RNA polymeraseC. DNA polymeraseD. reverse transcriptase

Which one of the following pair of codons is correctly mathed with function or the signal for the particular amino acidA. UAG, UGA -StopB. GUU,GCU - AlanineC. UUA,UCA - LeucineD. AUG, ACG - Start `//` Methionine

The central dogma of protein synthesis is `:`A. DNA RNA proteinB. RNA DNA proteinC. Protein RNA DNAD. Protein DNA RNA

Some of the inhibitors of bacterial protein synthesis and their effect are listed in column I and column II below . Match them and choose the correct option from answer key `:` A. A=p,B=q,C=r,D=t,E=sB. A=r,B=p,C=t,D=s,E=qC. A=q,B=r,C=s,D=p,E=tD. A=s,B=t,C=p,D=q,E=r

In bacteria, the formation of peptide bond during translation is effected byA. IsysozymeB. ribozymeC. nucleosomeD. microsome

The process of DNA formation from RNA is called `:`A. transcriptionB. transversionC. translationD. reverse transcription

Which codong is not an indicator of completion of protein synthesis ?A. UAGB. AUGC. UAAD. UGA

Formation of polysome does not require `:`A. r-RNAB. m-RNAC. t-RNAD. sn-RNA

Transcription of DNA is aided byA. ExonucleaseB. RecombinaseC. DNA polymeraseD. RNA polymerase

Which of these is incorrect for translation ?A. It occurs inside the nucleusB. It is under operon regulationC. It occurs inside the cytoplasmD. Protein are synthesized from it

Which statement about translation is not true ?A. There are both start and stop codonsB. It is RNA - directed polypeptide synthesisC. The same genetic code operates in all organismsD. An m-RNA molecule can be translated by only one ribosome at a time

Out of the given four combination which one prossess the integrated protein synthesizing machinery `:`A. m-RNA,t-RNA and amino acidB. ribosomes, t-RNA and aminoa cidC. t-RNA , ribosome , nucleus andn m-RNAD. ribosomes, t-RNA,m-RNA and amino acid

One of the following nitrogenous bases is not present in RNA, choose one `:`A. UracilB. GuanineC. CytosineD. Thymine

Pyrimidines of RNA are represented by `:`A. uracil and guanineB. cytosine and uracilC. adenine and cytosineD. thymine and cytosine

Which one of the following enzmes is responsible for the synthesis of DNA from RNA ?A. DNA ligaseB. DNA polymeraseC. RNA polymeraseD. Reverse transcriptase

some amino acids are coded by more than one codon, hence the genetic code isA. degenerateB. specificC. univeralD. punctuated

Three dimensional structure of t-RNA was proposed by `:`A. KimB. MonodC. GamowD. Hoagland

In three dimensional view, the molecule of t-RNA is `:`A. E-shapedB. S-shapedC. Y-shapedD. L-shaped

Anticodons are present on `:`A. r-RNAB. t-RNAC. mt-RNAD. m-RNA

Genetic code consists of `:` `{:(1. "m- RNA",,,,2. "Iysosome"),(3. "cytosine and uracil",,,,4. "adenine and guanine"):}` Answer codes `:`A. 1 and 2 are correctB. 3 and 4 are correctC. 1 and 3 are correctD. 1,2, and 3 are correct

What is not true for genetic codeA. It is degenerateB. It is unambiguousC. It is nearly universalD. A codon in m-RNA is read in a non-contiguous fashion

Assertion : A monocistronic mRNA can produce several types of polypepitude chains . Reason : The terminator codon is present on the mRNA.A. statement A is wrong and B is correctB. both the statement A and B are correctC. both the statements A and B are wrongD. statement A is correct and B is wrong

A sequence of three consecutive bases in a t-RNA molecule which specially binds to a complementary codon sequence in m-RNA is known as `:`A. tripletB. anticodonC. nonsense codonD. Termination codon

The number of stop codons which do not code for any amino acid is `:`A. 1B. 2C. 3D. 4

Which of the follownig codons has no t-RNA ?A. UAUB. UGUC. UAAD. UGC

Triplet codon refers to sequence of three bases on `:`A. t-RNAB. m-RNAC. r-RNAD. all of these

What is not true for genetic codeA. It is denerateB. It is unambiguousC. It is nearly universalD. A codon in m-RNA is read in a non-contiguous fashion

Which triplet codon does not have t-RNA associated with it ?A. UAAB. UUAC. UUUD. AUU

Identify the correct match betweent he codons and coding functions `:` A. A=1,B=4,C=2,D=3B. A=2,B=4,C=1,D=3C. A=4,B=3,C=2,D=1D. A=4,B=1,C=3,D=2

The number of triplet codons having all the three bases same in 64 triplet codons is `:`A. 2B. 4C. 6D. 8

Out of 64 codons , 61 codons code for 20 types of amino acid. It is calledA. wobbling of codonB. overlapping of genesC. unversality of codonsD. degeneracy of genetic code

A codon consists of 3 bases and there are of 4 different kinds of bases in a nucleic acid altogether . How many codons will be there ?A. 22B. 60C. 64D. 86

Sequence of amino acids in a polypeptide is determined by `:`A. m-RNAB. t-RNAC. r-RNAD. genetic code

Two or more codons coding for one amino acid `:`A. nonambiguousB. nonsense codonC. degeneracy of codonD. nonoveralpping of codon

In the coding dictionary, there are 64 codons as `:`A. genetci code is tripletB. 64 types of t-RNA are presentC. 64 amino acids are to be codedD. there are 44 nonsense codons and 20 sense codons

The triplet codes for several amino acids are experimentally determined by `:`A. Watson and CrickB. Breadle and TatumC. Lederberg and TatumD. Nirenberg and associates

Genetic code was discovered by `:`A. Watson and CrickB. Holley and OchoaC. Nirenberg and MatheiD. Holley, Nirenberg and Khorana