Applications of Biotechnology MCQs | Applications of Biotechnology Objective Type Questions and Answers

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Questions
1 Silencing of a gene could be achieved through the use of
A Short interfering RNA(RNAi)
B Antisense RNA
C By both
D None of the above

Answer:By both
2 Silencing of m-RNA has been used in producing transgenic plants resistant to
A Bollworms
B Nematodes
C White rusts
D Bacterial blights

Answer: Nematodes
3 Tobacco plants resistant to a nematode have been developed by the introduction of DNA that produces(in the host cell)
A Both sense and anti-sense RNA
B A particular hormone
C An antifeedant
D A toxin protein

Answer: Both sense and anti-sense RNA
4 Amplification of gene of interest by using DNA polymerase may go upto
A 0.1 million times
B 1.0 million times
C 1.0 billion times
D 1.0 trillion times

Answer:1.0 billion times
5 Which of the following Bt crops is being grown in India by the farmers?
A Cotton
B Brinjal
C Soybean
D Maize

Answer:Cotton
6 The first human hormone produced by recombinant DNA technology is
A Insulin
B Estrogen
C Thyroxin
D Progesterone

Answer: Insulin
7 An analysis of chromosomal DNA using the hybridization technique does not use
A Electrophoresis
B Blotting
C Autoradiography
D PCR

Answer: PCR
8 Bt cotton is not:
A A GM plant
B Insect resistant
C A bacterial gene expressing system
D Resistant to all pesticides

Answer:Resistant to all pesticides
9 C-peptide of human insulin is:
A A part of mature insulin molecule
B Responsible for formation of disulphide bridges
C Removed during maturation of pro-insulin to insulind
D Responsible for its biological activity

Answer:Removed during maturation of pro-insulin to insulind
10 GEAC stands for:
A Genome Engineering Action Committee
B Ground Environment Action Committee
C Genetic Engineering Approval Committee
D Genetic and Environment Approval committee

Answer: Genetic Engineering Approval Committee
11 α -1 antitrypsin is:
A An antacid
B An enzyme
C Used to treat arthritis
D Used to treat emphysema

Answer: Used to treat emphysema
12 The site of production of ADA in the body is:
A Bone marrow
B Lymphocytes
C Blood plasma
D Monocytes

Answer: Lymphocytes
13 A protoxin is:
A A primitive toxin
B A denatured toxin
C Toxin produced by protozoa
D Inactive toxin

Answer: Inactive toxin
14 The trigger for activation of toxin of Bacillus thuringiensis is:
A Acidic pH of stomach
B High temperature
C Alkaline pH of gut
D Mechanical action in the insect gut

Answer: Alkaline pH of gut
15 In RNAi, genes are silenced using:
A ss DNA
B ds DNA
C ds RNA
D ss RNA

Answer: ds RNA
16 ‘Molecular scissor’ used in genetic engineering is
A Restriction endonuclease
B DNA polymerase
C DNA ligase
D Helicase

Answer:Restriction endonuclease
17 Plants are genetically engineered with novel genes by
A Recombination breeding
B Protoplast fusion
C Recombinant DNA technology
D Embryo rescue technique

Answer: Recombinant DNA technology
18 Maximum application of animal culture technology today is in the production
A Insulin
B Interferons
C Edible proteins
D Vaccines

Answer: Vaccines
19 Restriction enzymes were discovered by
A Smith and Nathans
B Alexander Fleming
C Berg
D None

Answer:Smith and Nathans
20 Bacteria protect themselves from viruses by fragmenting viral DNA with
A Ligase
B Endonuclease
C Exonuclease
D Gyrase

Answer: Endonuclease

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