MCQOPTIONS
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MCQOPTIONS
This section includes 94 Mcqs, each offering curated multiple-choice questions to sharpen your SRMJEEE knowledge and support exam preparation. Choose a topic below to get started.
| 51. |
Which one contains four pyrimidine bases? |
| A. | GATCAATGC |
| B. | GCUAGACAA |
| C. | UAGCGGUAA |
| D. | TGCCTAACG |
| Answer» B. GCUAGACAA | |
| 52. |
Which of the following tool makes possible genetic engineering? |
| A. | Restriction endonuclease |
| B. | DNA polymerase |
| C. | Helicase |
| D. | RNA polymerase |
| Answer» B. DNA polymerase | |
| 53. |
Which of the following is used in Biowar? |
| A. | A pathogen |
| B. | Toxin from a pathogen |
| C. | A delivery system for the bioweapon agent |
| D. | All of these |
| Answer» E. | |
| 54. |
Which of the following is related to genetic engineering? |
| A. | Mitochondrion |
| B. | Golgi apparatus |
| C. | Lysosome |
| D. | Plasmid |
| Answer» E. | |
| 55. |
Which of the following is a genetic vector? |
| A. | Plasmid |
| B. | Phage |
| C. | Cosmid |
| D. | All of these |
| Answer» E. | |
| 56. |
Which of the following features should be present in vector? |
| A. | It should replicate autonomously |
| B. | It should have its own origin of replication |
| C. | It should possess restriction enzyme cleavage sites |
| D. | All of these |
| Answer» E. | |
| 57. |
Which of the following enzyme joints the okazaki fragments? |
| A. | DNA polymerase |
| B. | DNA ligase |
| C. | Helicase |
| D. | Restriction endonuclease |
| Answer» C. Helicase | |
| 58. |
Which is related to genetic engineering? |
| A. | Plastid |
| B. | Plasmid |
| C. | Heterosis |
| D. | Mutation |
| Answer» C. Heterosis | |
| 59. |
Which enzyme is useful in genetic engineering? |
| A. | DNAase |
| B. | Amylase |
| C. | Lipase |
| D. | Restriction endonuclease |
| Answer» E. | |
| 60. |
Cry genes or Bt genes are obtained from |
| A. | Cotton pest |
| B. | Tobacco plant |
| C. | Bacillus thuringiensis |
| D. | E - Coli |
| Answer» D. E - Coli | |
| 61. |
Transgenic plants are developed by |
| A. | Introducing foreign genes |
| B. | Introducing gene mutations |
| C. | Deleting certain chromosomes parts |
| D. | Stopping spindle formation |
| Answer» B. Introducing gene mutations | |
| 62. |
There is a restriction endonuclease called EcoRI. What does "co" part in it stand for? |
| A. | coli |
| B. | colon |
| C. | coelom |
| D. | coenzyme |
| Answer» B. colon | |
| 63. |
The two strands of DNA are held together by bonds of |
| A. | Nitrogen |
| B. | Oxygen |
| C. | Hydrogen |
| D. | Carbon |
| Answer» D. Carbon | |
| 64. |
The transgenic animals are those which have |
| A. | foreign DNA in some of their cells |
| B. | foreign DNA in all of their cells |
| C. | foreign RNA in all of their cells |
| D. | Both (A) and (C) |
| Answer» C. foreign RNA in all of their cells | |
| 65. |
The term gene was coined by |
| A. | Mc Clintock |
| B. | Morgan |
| C. | Johannsen |
| D. | De Duve |
| Answer» C. Johannsen | |
| 66. |
The specific triplet of nitrogen bases on the transfer RNA is called |
| A. | Codon |
| B. | Anticodon |
| C. | Genetic code |
| D. | none of the above |
| Answer» C. Genetic code | |
| 67. |
The process of RNA interference has been used in the development of plants resistant to |
| A. | Insects |
| B. | Nematodes |
| C. | Fungi |
| D. | Viruses |
| Answer» C. Fungi | |
| 68. |
The plant 'Brassica napus' has been modified to produce ______. |
| A. | Vitamin A |
| B. | hirudin |
| C. | lysine rich seeds |
| D. | insulin |
| Answer» C. lysine rich seeds | |
| 69. |
The nitrogen base which is absent in RNA is |
| A. | Adenine |
| B. | Cytosine |
| C. | Guanine |
| D. | Thymine |
| Answer» E. | |
| 70. |
The most common substrate used in distilleries for the production of ethanol is |
| A. | Molasses |
| B. | Corn meal |
| C. | Soya meal |
| D. | Ground gram |
| Answer» B. Corn meal | |
| 71. |
The first transgenic crop was |
| A. | Pea |
| B. | Tobacco |
| C. | Flax |
| D. | Cotton |
| Answer» C. Flax | |
| 72. |
The first hormone artificially produced by bacteria is |
| A. | insulin |
| B. | thyroxin |
| C. | adrenalin |
| D. | testosterone |
| Answer» B. thyroxin | |
| 73. |
The enzymes required to obtain wall-free / naked protoplasts are |
| A. | Cellulase and proteinase |
| B. | Cellulase and pectinase |
| C. | Cellulase and amylase |
| D. | Amylase and pectinase |
| Answer» C. Cellulase and amylase | |
| 74. |
Structure involved in genetic engineering is |
| A. | Plasmid |
| B. | Codon |
| C. | Plastid |
| D. | Scissors |
| Answer» B. Codon | |
| 75. |
Somatic hybridization is achieved through |
| A. | Grafting |
| B. | Protoplast fusion |
| C. | Conjugation |
| D. | Recombinant DNA technology |
| Answer» C. Conjugation | |
| 76. |
Restriction endonucleases are used in genetic engineering, because |
| A. | they can degrade harmful proteins |
| B. | they can join DNA fragments |
| C. | they can cut DNA at specific base sequences |
| D. | they can cut DNA at variable sites |
| Answer» D. they can cut DNA at variable sites | |
| 77. |
Restriction endonucleases are used in genetic engineering and they |
| A. | cut DNA at various sites |
| B. | join DNA segments |
| C. | cut RNA at specific sites |
| D. | cut DNA at specific sites |
| Answer» E. | |
| 78. |
Polyethylene glycol is |
| A. | Fusogenic chemical |
| B. | Electro fusion stimulant |
| C. | Callus stimulant |
| D. | Differentiation stimulant |
| Answer» B. Electro fusion stimulant | |
| 79. |
Plant tissue culture technique is a redefined method of ________ |
| A. | Hybridization |
| B. | Vegetative propagation |
| C. | Asexual reproduction |
| D. | selection |
| Answer» C. Asexual reproduction | |
| 80. |
One of the following processes involves southern blotting technique |
| A. | rDNA technology |
| B. | DNA finger printing |
| C. | production of transgenic plants |
| D. | formation of suspension culture |
| Answer» C. production of transgenic plants | |
| 81. |
Maximum number of existing transgenic animals is of |
| A. | Pig |
| B. | Fish |
| C. | Mice |
| D. | Cow |
| Answer» D. Cow | |
| 82. |
Given below is a sample of a portion of DNA strand giving the base sequence on the opposite strands. What is so special shown in it? 5' ______ GAATTC ________ 3' 3' ________CTTAAG ________ 5' |
| A. | Palindromic sequence of base pairs |
| B. | Replication completed |
| C. | Deletion mutation |
| D. | Start codon at the 5 end |
| Answer» B. Replication completed | |
| 83. |
Genomics is the study of |
| A. | Genes in general |
| B. | Human genes |
| C. | Genomes in general |
| D. | Human genome |
| Answer» D. Human genome | |
| 84. |
Genetic Engineering is |
| A. | plastic surgery |
| B. | addition or removal of genes |
| C. | study of extranuclear genes |
| D. | all of the above |
| Answer» C. study of extranuclear genes | |
| 85. |
First artificial gene was synthesized by |
| A. | Nirenberg |
| B. | Mendel |
| C. | Morgan |
| D. | Khorana |
| Answer» E. | |
| 86. |
Embryo culture is used for |
| A. | Establishing suspension culture |
| B. | Recovery of inter specific hybrids |
| C. | Somatic hybridization |
| D. | Haploid production |
| Answer» D. Haploid production | |
| 87. |
Dolly, The first cloned mammal, was produced by |
| A. | Parthenogenesis |
| B. | Artificial fertilization |
| C. | Replacement of zygote nucleus by somatic nucleus |
| D. | in vitro fertilization |
| Answer» D. in vitro fertilization | |
| 88. |
DNA is found in |
| A. | Chromosomes |
| B. | Plastids |
| C. | Mitochondria |
| D. | All of the above |
| Answer» E. | |
| 89. |
DNA fingerprinting was discovered by |
| A. | James Watson |
| B. | Alec Jeffreys |
| C. | Frederick Fanger |
| D. | Hargobind Khorana |
| Answer» C. Frederick Fanger | |
| 90. |
Which purine is found in RNA? |
| A. | Guanine |
| B. | Cytosine |
| C. | Thymine |
| D. | Uracil |
| Answer» B. Cytosine | |
| 91. |
Continuous addition of sugars in 'fed batch' fermentation is done to |
| A. | Degrade sewage |
| B. | Produce methane |
| C. | Obtain antibiotics |
| D. | Purify enzymes |
| Answer» E. | |
| 92. |
Agarose extracted from sea weeds finds use in |
| A. | Gel electrophoresis |
| B. | Spectrophotometry |
| C. | Tissue culture |
| D. | PCR |
| Answer» B. Spectrophotometry | |
| 93. |
Advancement in genetic engineering has been possible due to the discovery of |
| A. | Oncogenes |
| B. | Transposons |
| C. | Restriction endonuclease |
| D. | Exonucleases |
| Answer» D. Exonucleases | |
| 94. |
A dividing and undifferentiated mass of cells is called |
| A. | Callus |
| B. | Embryo |
| C. | Explant |
| D. | Zygote |
| Answer» B. Embryo | |