Biotechnology Applications MCQs Type Questions with Answer for ISC Class 12 Biology

Question 12: GEAC stands for

(a) Genetic Engineering Approval Committee

(b) Genetic and Environment Approval committee

(c) Ground Environment Action Committee

(d) Genome Engineering Action Committee

Answer : (a) Genetic Engineering Approval Committee

Question 13: Clot buster obtained from Streptococcus and modified by genetic engineering is

(a) Streptokinase

(b) Penicillin

(c) Cyclosporin A

(d) Statins

Answer : (a) Streptokinase

Question 14: α – 1 antitrypsin is :

(a) Used to treat emphysema

(b) Used to treat arthritis

(c) An enzyme

(d) An antacid

Answer : (a) Used to treat emphysema

Question 15: Humulin is the term used for

(a) A powerful antibiotic
(b) A new digestive enzyme
(c) New Research integrated to human welfare
(d) Human insulin

Answer : (d) Human insulin

Question 16: Number of known enzymes is

(a) 1200
(b) 2200
(c) About 5000
(d) Around 500

Answer : (b) 2200

Question 17:  A probe which is a molecule used to locate specific sequences in a mixture of DNA or RNA molecules could be

(a) Either RNA or DNA

(b) Can be ss DNA but not ss RNA

(c) A single stranded DNA

(d) A single stranded RNA

Answer : (a) Either RNA or DNA

Question 18:  Restriction endonuclease is employed for cutting

(a) mRNA

(b) RNA fragment

(c) Double strand DNA

(d) A single strand DNA

Answer : (c) Double strand DNA

Question 19:  Production of human protein in bacteria by genetic engineering is possible because

(a) Bacterial cell can undertake RNA splicing

(b) Genetic code is universal

(c) Mechanism of gene regulation is identical in humn and bacteria

(d) None of these

Answer : (b) Genetic code is universal

Question 20:  Some of the characteristics of Bt cotton are

(a) High yield and production of toxic proteins ceystals which kill dipteran pests

(b) High yield and resistance to bollworms

(c) High yield and resistance to bollworms

(d) All of these

Answer : (a) High yield and production of toxic proteins ceystals which kill dipteran pests

Question 21:  Which bacterium is used in the production of insulin by genetic engineering?

(a) Rhizobium

(b) Mycobacterium

(c) Escherichia

(d) Saccharomyces

Answer : (c) Escherichia

Question 22:  Choose the correct option regarding Retrovirus

(a) An RNA virus that can synthesise DNA during infection

(b) A DNA virus that can synthesise RNA during infection

(c) A ssDNA virus

(d) A dsRNA virus

Answer : (a) An RNA virus that can synthesise DNA during infection

Question 23: Herbicide resistant gene in plants is:

(a) Ct
(b) Mt
(c) Bt
(d) Gst

Answer : (d) Gst

Question 24: RNA interference (RNAi) technique has been devised to protect the plants from nematode is silenced by ______produced by the host plant.

(a) dsDNA

(b) ssDNA

(c) dsRNA

(d) target proteins

Answer : (c) dsRNA 

Question 25:  Restriction enzymes are also called

(a) Vectors

(b) Carriers

(c) Molecular scissors

(d) Molecular makers

Answer : (c) Molecular scissors

Question 26: Bt toxin kill the larvae of certain insects

(a) by binding of activated toxin on mid gut epithelial cells, creating pores, leading to swelling and lysis.
(b) by stopping transcription of larval cells.
(c) by altering central dogma taking place in the cells of gut of larva.
(d) by stopping protein synthesis.

Answer : (a) by binding of activated toxin on mid gut epithelial cells, creating pores, leading to swelling and lysis.

Question 27:  ———– is used as a vector for cloning into higher organisms

(a) Retrovirus

(b) Baculovirus

(c) Salmonella typhimurium

(d) All of these

Answer : (a) Retrovirus

Question 28: Tobacco plants resistant to a nematode have been developed by the introduction of DNA that produced (in the host cells)

(a) both sense and anti-sense RNA.
(b) a particular hormone.
(c) an antifeedant.
(d) a toxic protein.

Answer : (a) both sense and anti-sense RNA.

Question 29: The site of production of ADA in the body is

(a) Monocytes

(b) Bone marrow

(c) Blood plasma

(d) Lymphocytes

Answer : (d) Lymphocytes

Question 30: Pathophysiology is the

(a) Study of physiology of pathogen

(b) None of the above

(c) Study of normal physiology of host

(d) Study of altered physiology of host

Answer : (d) Study of altered physiology of host

Question 31: Anticoagulant hirudin is found in:

(a) In Snake
(b) In Lizard
(c) In Leech
(d) In Scorpion

Answer : (c) In Leech

Question 32: The trigger for activation of toxin of Bacillus thuringiensis is

(a) High temperature

(b) Mechanical action in the insect gut

(c) Alkaline pH of gut

(d) Acidic pH of stomach

Answer : (c) Alkaline pH of gut

Question 33:  Maturation of proinsulin into insulin takes place after

(a) Joining of c-peptide

(b) Maturation of proinsulin into insulin takes place after

(c) Addition of disulphide bridge

(d) Joining of c-peptide

Answer : (b) Maturation of proinsulin into insulin takes place after

Question 34: Cry protein is obtained from

(a) Bacillus thuringiensis
(b) Bacillus subtilis
(c) Clostridium welchi
(d) E. coli

Answer : (a) Bacillus thuringiensis

Question 35: The genetically modified brinjal in India has been developed for 

(a) Drought resistance

(b) Enhancing mineral content

(c) Enhancing shelf life

(d) Insect resistance

Answer : (d) Insect resistance

Question 36: Which kind of therapy was given in 1990 to a four-year-old girl with ADA deficiency? (Adenosine Deaminase) 

(a) Radiation Therapy

(b) Gene Therapy

(c) Radiation Therapy

(d) Immunotherapy

Answer : (b) Gene Therapy

Question 37: The process of RNA interference has been used in the development of plants resistant to _____ 

(a) Insects

(b) Nematodes

(c) Fungi

(d) Viruses

Answer : (b) Nematodes

Question 38: Which is a genetically modified crop?

(a) All of these

(b) Golden rice

(c) Bt-brinjal

(d) Bt-cotton

Answer : (a) All of these

Question 39: The first bioherbicide was obtained from

(a) Peninciilium
(b) Phytophthora palmivora
(c) Phythophthora infestons
(d) Bacillus thuringiensis

Answer : (b) Phytophthora palmivora

Question 40: Antigens are present

(a) Inside nucleus
(b) Inside cytoplasm
(c) On cell surface
(d) Inside lysosomes

Answer : (c) On cell surface

Question 41: A protoxin is:

(a) Inactive toxin

(b) Toxin produced by protozoa

(c) A denatured toxin

(d) A primitive toxin

Answer : (a) Inactive toxin

Question 42: Number of antibiotics isolated till now is

(a) Around 700
(b) Over 7000
(c) About 1700
(d) Around 70

Answer : (b) Over 7000

Question 43: The first transgenic crop was

(a) Pea
(b) Flax
(c) Tobacco
(d) Cotton

Answer : (c) Tobacco

Question 44: Bt cotton is not

(a) Resistant to all pesticides

(b) A bacterial gene expressing system

(c) Insect resistant

(d) A GM plant

Answer : (a) Resistant to all pesticides

Question 45: On what Indian bioresource did Vandana Shiva’s efforts get the patent cancelled?

(a) Healing principle of turmeric
(b) Anti-diabetes property of Karela
(c) Insecticides from Neem
(d) Laxative property of animals

Answer : (c) Insecticides from Neem

Question 46: First biochemical to be produced commercially by microbial cloning and genetic engineering:

(a) Human insulin
(b) Penicillin
(c) Interferons
(d) Fertility factor

Answer : (b) Penicillin

Question 47:  C-peptide of human insulin is

(a) Removed during maturation of pro-insulin to insulin

b) Responsible for its biological activity

(c) Responsible for formation of disulphide bridges

(d) A part of mature insulin molecule

Answer : (a) Removed during maturation of pro-insulin to insulin

Question 48: A technology which has found immense use in solving cases of disputed percentage is:

(a) Polymerase chain reaction
(b) DNA finger printing
(c) None of these
(d) Both (a) and (b)

Answer : (b) DNA finger printing

Question 49: Bacillus thruingiensis (Bt) strains have been used for designing nobel:

(a) Biofertilizers
(b) Biometallurgical techniques
(c) Biomineralization processes
(d) Bioinsecticidal plants

Answer : (a) Biofertilizers

Question 50: PCR technique was invented by

(a) Karry Mullis

(b) Boyer

(c) Sanger

(d) None of these

Answer : (a) Karry Mullis

–: End of Biotechnology Applications MCQs for ISC Class 12 Biology  :–

-: also visit :-

• ISC Sem-2 Question Bank Class-12
• Sem-2 ISC Specimen Paper for Class-12
• ISC Class-12 Textbook Solutions ,Syllabus, Solved Paper
• Previous Year Question Paper for ISC Class-12

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