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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 | |