InterviewSolution
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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 51. |
Arrangement of three successive bases in the genetic code signifies `:`A. Protein structureB. plasmidsC. nucleic acidD. amino acids |
| Answer» Correct Answer - D | |
| 52. |
A sequence of how many nucleotides in messenger `RNA` makes a codon for amino acid ?A. 1B. 2C. 3D. 4 |
| Answer» Correct Answer - C | |
| 53. |
DNA and RNA are different milecules as `:`A. DNA has uracil and RNA has thymineB. DNA has thymine and RNA has uracilC. DNA has cytosine and RNA has guanineD. DNA is micromolecule and RNA is a macromolecule |
| Answer» Correct Answer - B | |
| 54. |
RNA differs from DNA in containing `:`A. ribose and uracilB. guanine and adenineC. uracil and deoxyriboseD. adenine and deoxyribose |
| Answer» Correct Answer - A | |
| 55. |
Which of the following is not a difference between RNA and DNA ?A. RNA has 5 bases and DNA has 4B. RNA has uracil and DNA has thymineC. RNA has ribose and DNA has deoxyriboseD. RNA is a single polynucleotide strand and DNA is double stranded |
| Answer» Correct Answer - A | |
| 56. |
The central dogma is not applicable in the case cf`:`A. retrovirusesB. all prokaryotesC. all animal virusesD. all plant viruses |
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Answer» Correct Answer - A Retroviruses are exception to the central dogma. |
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| 57. |
The difference between RNA and DNA is of `:`A. base onlyB. sugar and baseC. phosphate and baseD. sugar and phosphate |
| Answer» Correct Answer - B | |
| 58. |
If the nucleolus of the cell is destroyed, which of these in the cell will not be formed ?A. RibosomesB. LysosomesC. MicrotubulesD. Mitochondria |
| Answer» Correct Answer - A | |
| 59. |
Specific radioactive identification of ribosomal RNA can be achieved by using `.^(14)C` labelled `:`A. guanineB. uracilC. thymineD. cytosine |
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Answer» Correct Answer - B The pyrimidine thymine and the sugar deoxyribose are incorporated into DNA, not RNA. Adenine, cytosine and guanine are incorporated into both RNA and DNA. Ribose sugar and the base uracil are specifiv to all the forms of RNA. |
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| 60. |
Ribosomal RNA is synthesized in `:`A. ribosomeB. nucleolusC. lysosomeD. nucleosome |
| Answer» Correct Answer - B | |
| 61. |
In E. coli, the transcription is terminated by `:`A. H-factorB. rho-factorC. RNA polymeraseD. DNA polymerase |
| Answer» Correct Answer - B | |
| 62. |
Which conserved motifs are found in E. coli genes ?A. TATA boxB. CAAT boxC. Pribnow boxD. All of these |
| Answer» Correct Answer - C | |
| 63. |
RNA polymerase contains multiple polypeptide units. For initiating RNA synthesis it requires `:`A. `rho-`factorB. `sigma-`subunitC. `beta-` subunitD. spliceosome |
| Answer» Correct Answer - B | |
| 64. |
AUG codes for `:`A. ValineB. HistidineC. MethionineD. Phenylalanine |
| Answer» Correct Answer - C | |
| 65. |
Which of the following is smallest RNA ?A. t-RNAB. m-RNAC. r-RNAD. chromosomal RNA |
| Answer» Correct Answer - A | |
| 66. |
Which is soluble RNA ?A. r-RNA sequenceB. m-RNAC. r-RNAD. hn-RNA |
| Answer» Correct Answer - C | |
| 67. |
Translation is a process in which `:`A. DNA is formed on DNA templateB. RNA is formed on DNA templateC. DNA is formed on RNA templateD. Protein is formed from RNA message |
| Answer» Correct Answer - D | |
| 68. |
Mark the correct statement `:`A. m-RNA is polycistronic in eukaryotes and monocistronic in prokaryotesB. m-RNA is polycistronic in prokaryotes and monocistronic in eukaryotesC. m-RNA is polycistronic in both eukaryotes and prokaryotesD. m-RNA is monocistronic in both eukaryotes and prokaryotes |
| Answer» Correct Answer - B | |
| 69. |
Match the following and select the correct answer `:` A. A=3,B=4,C=1,D=5,E=2B. A=3,B=1,C=4,D=5,E=2C. A=3,B=4,C=5,D=1,E=2D. A=2,B=4,C=1,D=5,E=3 |
| Answer» Correct Answer - A | |
| 70. |
The process of translation is `:`A. RNA synthesisB. protein synthesisC. DNA synthesisD. ribosome synthesis |
| Answer» Correct Answer - B | |
| 71. |
Which of the following statements is not correct ?A. Cysteine is coded by UGU and UGC codonsB. Tyrosine is codedd by UAU and UAC codonsC. UGG codon codes for tryptophanD. UAA codon codes for lysine |
| Answer» Correct Answer - D | |
| 72. |
The codon which has dual function is Or polypeptide synthesis in prokaryotes is initiated byA. AUGB. AAAC. UGAD. UUU |
| Answer» Correct Answer - A | |
| 73. |
Which is not directly involved in protein synthesis ?A. InitiationB. termination of anticodonsC. ElongationD. Transcription |
| Answer» Correct Answer - D | |
| 74. |
Protein synthesis in an animal cell occursA. only on the ribosomes present in cytosolB. on ribosomes present in the nucleolus as well as in cytoplasmC. on ribosomes present in cytosol as well as in mitochondriaD. only on ribosomes attached to the nuclear envelope and endoplasmic retriculum. |
| Answer» Correct Answer - C | |
| 75. |
RNA is involved in the biosynthesis of `:`A. starchB. vitaminsC. Proteins into that of DNAD. nucleic acids |
| Answer» Correct Answer - C | |
| 76. |
The enzyme peptidyl transferase of prokaryotes risides in `:`A. 30S ribosomeB. 50S ribosomeC. 40S ribosomeD. 60S ribosome |
| Answer» Correct Answer - B | |
| 77. |
RNA is not found in `:`A. cell sapB. nucleusC. ribosomesD. cytoplasm |
| Answer» Correct Answer - A | |
| 78. |
Which of the following molecules moves regularly from the nucleus to the cytoplasm ?A. RNAB. DNAC. GlycogenD. Chloesterol |
| Answer» Correct Answer - A | |
| 79. |
RNA plays an important role in `:`A. cell divisionB. protein synthesisC. protein digestionD. carbohydrate synthesis |
| Answer» Correct Answer - B | |
| 80. |
RNA contains `:`A. riboseB. hexoseC. glucoseD. fructose |
| Answer» Correct Answer - A | |
| 81. |
What is synthesised by RNA polymerase ?A. r-RNA sequenceB. eukaryotic m-RNAC. prokaryotic r-RNAD. prokaryotic m-RNA |
| Answer» Correct Answer - B | |
| 82. |
Messenger RNA is produced in `:`A. NucleusB. RibosomesC. Golgi apparatusD. Endoplasmic reticulum |
| Answer» Correct Answer - A | |
| 83. |
The process by which DNA of the nucleus passes genetic information to the messenger RNA is called `:`A. translationB. translocationC. transcriptionD. transportation |
| Answer» Correct Answer - C | |
| 84. |
The processes by which m-RNA is made by DNA and protein by m-RNA are respectively called as `:`A. transcription and translationB. translation and transcriptionC. synthesis of m-RNA and proteinD. replication of m-RNA and protein |
| Answer» Correct Answer - A | |
| 85. |
Synthesis of m-RNA from DNA is termed `:`A. transfectionB. transcriptionC. transduction and translationD. transformation |
| Answer» Correct Answer - B | |
| 86. |
If the sequence of bases in DNA is GCTTAGGCAA then the sequence if bases in its transcript will beA. UAAGCUACB. TAAGCTACC. CAUCGAAUD. AUUCGAUG |
| Answer» Correct Answer - A | |
| 87. |
If the sequence of bases in DNA is GCTTAGGCAA then the sequence if bases in its transcript will beA. ATGCB. AUCGC. TAGCD. TACG |
| Answer» Correct Answer - B | |
| 88. |
Heterogeneous nuclear RNA (hn-RNA) is converted to m-RNA by `:`A. splicingB. cappingC. tailingD. all of these |
| Answer» Correct Answer - D | |
| 89. |
The enzyme aminoacyl synthetase facilitates `:`A. joining two neighbouring amino acids on ribosomesB. insertion of aminoacyl-t-RNA into the ribosome sitesC. adoption of amino acid by a t-RNA molecule of its typeD. transfer of aminoacyl-t-RNA form the ribosomal A site to P site |
| Answer» Correct Answer - C | |
| 90. |
The reaction, Amino acid `+` ATP `rarr` Aminoacyl -MAP`+` P-P depicts `:`A. Amino acid aasimilationB. Amino acid transformationC. Amino acid activationD. Amino acid translocation |
| Answer» Correct Answer - C | |
| 91. |
An aminoacyl synthetase is responsible for `:`A. attaching an amino acid group to an organic acidB. joining an amino acid to a t-RNAC. formation of a peptide bondD. none of the above |
| Answer» Correct Answer - B | |
| 92. |
The diagram shows an important concept in the genetic implicatio of DNA. Fill in the blanks A to C. A. A-transcription B-translation C- Francis CrickB. A-translation B-extension C- Rosalind FranklinC. A-transcriptoin B-replication C-James WatsonD. A-translation B-transcription C-Erevin Chargaff |
| Answer» Correct Answer - A | |
| 93. |
The nonsense codons help in `:`A. inhibition of toxic proteinB. termination of anticodonsC. termination of polypeptide chainD. formation of long polypeptide chain |
| Answer» Correct Answer - C | |
| 94. |
Which one of the following is a nonsense codon ?A. UAGB. UGCC. UGGD. UAC-Tyrosine |
| Answer» Correct Answer - A | |
| 95. |
Protein synthesis occurs on `:`A. ribosomesB. lysosomesC. chloroplastsD. mitochondria |
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Answer» Correct Answer - A Rough endoplasmic reticulum is related to protein synthesis. |
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| 96. |
Which of the following pairs is correct ?A. Mitochondria-AcrosomeB. DNA synthesis -RibosomesC. RNA synthesis- Okazaki fragmentsD. Protein synthesis - Rough endoplasmic reticulum |
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Answer» Correct Answer - D Golgi complex - acrosome, DNA synthesis - Okazaki fragments. |
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| 97. |
Which of the character is not applicable to t-RNA ?A. It is the largest of the RNAsB. It is the smallest of the RNAsC. It has a clover leaf like structureD. It acts as an adapter for amino acid |
| Answer» Correct Answer - A | |
| 98. |
What will be the sequence of nucleotides in m-RNA if DNA have ATTGGC sequence ?A. TAAGGGB. UGATCAC. ATAGCGD. UAACCG |
| Answer» Correct Answer - D | |
| 99. |
A DNA strand with nitrogenous base sequence ATTGCC will have `:`A. UAACGGB. ATCGCCC. ATTGCAD. UGGACC |
| Answer» Correct Answer - A | |
| 100. |
Nuclear DNA sends information for protein synthesis through `:`A. t-RNAB. r-RNAC. m-RNAD. all of these |
| Answer» Correct Answer - C | |