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Free download in PDF Applications of Biotechnology Multiple Choice Questions and Answers for competitive exams. These short objective type questions with answers are very important for Board exams as well as competitive exams like NEET, AIIMS, JIPMER etc. These short solved questions or quizzes are provided by Gkseries./p>
(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
(7)
Blindness is prevented by use of which crop in poor countries?
[A]
Golden rice
[B]
Wheat
[C]
Gram
[D]
Pea
(8)
Human insulin is being commercially produced from a transgenic species of
[A]
Rhizobium
[B]
Saccharomyces
[C]
Escherichia
[D]
None of these
(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
(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
(12)
Isolation of Bt gene from bacterium (Bacillus thuringiensis) was taken up in the year
[A]
1977
[B]
1980
[C]
1997
[D]
1990
(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
(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
(19)
The first clinical gene therapy was done for the treatment of
[A]
AIDS
[B]
Cancer
[C]
Cystic fibrosis
[D]
SCID
(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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