Applications of Biotechnology MCQs | Applications of Biotechnology Multiple Choice Questions and Answers

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Questions
1 Which of the following is a correct statement
A ”Bt” in “Bt-cotton” indicates that it is a genetically modified organisms produced through biotechnology
B Somatic hybridization involves fusion of two complete plant cells carrying desired genes
C The anticoagulant hirudin is being produced from transgenic Brassica napus seed
D ”Flavr Savr”variety of tomato has enhanced the production of ethylene which improves its tastes its taste

Answer:The anticoagulant hirudin is being produced from transgenic Brassica napus seed
2 Which bacteria is used as biopesticide first on the commercial scale in the world?
A Bacillus thuringiensis
B E.coli
C Pseudomonas aeruginosa
D Agrobacterium tumefaciens

Answer:Bacillus thuringiensis
3 Gene recombinant technology is used for
A Vector less gene transfer into target cell
B Vector based gene transfer into target cell
C Direct transfer of DNA protein complex
D Liposome base direct gene transfer into target cell

Answer: Vector based gene transfer into target cell
4 Transfer of DNA bands from an agrose gel to a nitrocellulose or nylon membrane is referred to as
A Western transfer
B Northern transfer
C Eastern transfer
D Southern transfer

Answer: Southern transfer
5 Golden rice is a promising transgenic crop. When released for cultivation, it will help in
A Producing a petrol-like fuel from rice
B Alleviation of vitamin A
C Pest resistance
D Herbicide tolerance

Answer: Alleviation of vitamin A
6 A genetically engineered micro-organism used successfully in bioremediation of oil spills is a species of
A Trichoderma
B Xanthomonass
C Bacillus
D Pseudomonas

Answer:Pseudomonas
7 Blindness is prevented by use of which crop in poor countries?
A Golden rice
B Wheat
C Gram
D Pea

Answer: Golden rice
8 Human insulin is being commercially produced from a transgenic species of
A Rhizobium
B Saccharomyces
C Escherichia
D None of these

Answer:Escherichia
9 A transgenic food crop which may help in solving the problem of night blindness in developing countries is
A Bt soybean
B Golden rice
C Flavrsavrtomatoes
D Starlink maize

Answer: Golden rice
10 Main objective of production/use of herbicide resistant GM crops is to
A Encourage eco-friendly herbicides
B Reduce herbicide accumulation in food articles for healt h safety
C Eliminate weeds from the field without the use of manual labour
D Eliminate weeds from the field without the use of herbicide

Answer: Reduce herbicide accumulation in food articles for healt h safety
11 Genetically engineered bacteria are being employed for production of
A Thyroxine
B Human insulin
C Cortisol
D Epinephrine

Answer: Thyroxine
12 Isolation of Bt gene from bacterium (Bacillus thuringiensis) was taken up in the year
A 1977
B 1980
C 1997
D 1990

Answer: 1980
13 Which one of the following is commonly used in transfer of foreign DNA into crop plants?
A Meloidogyne incognita
B Agrobacterium tumefaciens
C Pencillium expansum
D Trichoderma harzianum

Answer: Agrobacterium tumefaciens
14 What is true about Bt toxin?
A Bt toxin exists as active toxin in the Bacillius
B The activated toxin enters the ovaries of the pest to sterlise it and thus prevents its multiplication
C The concerned Bacillus has anti toxin
D The inactive prototoxin gets converted into active form in the insect gut

Answer: The inactive prototoxin gets converted into active form in the insect gut
15 Transgenic plants are the ones
A Generated by introducing foreign DNA into a cell and regenerating a plant from the cell
B Produced after protoplast fusion in artificial medium
C Grown in artificial medium after hybridization in the field
D Produced by a somatic embryo in artificial medium

Answer: Generated by introducing foreign DNA into a cell and regenerating a plant from the cell
16 The bacteria Bacillus thuringiensis is widely used in contemporary biology as
A Insecticide
B Agent for production of diary products
C Source of industrial enzyme
D Indicator of water pollution

Answer: Insecticide
17 Golden rice is
A A variety of rice grown along the yellow river in china
B Long stored rice having yellow colour tint
C A transgenic rice having gene for β-carotene
D Wild variety of rice with yellow coloured grains

Answer: A variety of rice grown along the yellow river in china
18 In RNAi,genes are silenced using
A ss DNA
B ds DNA
C ds RNA
D ss RNA

Answer: ds RNA
19 The first clinical gene therapy was done for the treatment of
A AIDS
B Cancer
C Cystic fibrosis
D SCID

Answer:Cystic fibrosis
20 ADA is an enzyme which is deficient in a genetic disorder SCID. What is the full form of ADA?
A Adenosine deoxyaminase
B Adenosine deaminase
C Aspartate deaminase
D Arginine deaminase

Answer: Adenosine deaminase

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