In This Post we are  providing Chapter-12 Biotechnology and its Application  NCERT MCQ for Class 12 Biology which will be beneficial for students. These solutions are updated according to 2021-22 syllabus. These MCQS  can be really helpful in the preparation of Board exams and will provide you with a brief knowledge of the chapter.

NCERT MCQ ON BIOTECHNOGY AND ITS APPLICATION

1. Which of the following is commonly used as a vector for introducing a DNA fragment in human lymphocytes?

(a) X phage

(b) Retrovirus

(c) Ti plasmid

(d) PBR 322

Answer: B

2. Which kind of therapy was given in 1990 to a four year old girl with Adenosine Deaminase deficiency (ADA)?

(a) Gene therapy

(b) Chemo therapy

(c) Immunotherapy

(d) Radiation therapy

Answer: A

3. The two polypeptides of human insulin are linked together by________

(a) Phosphodiester bond

(b) Covalent bond

(c) Disulphide bridges

(d) Hydrogen bonds

Answer: C

4. Which part of the tobacco plant is infected bycMeloidogyne incognitia?

(a) Leaf

(b) Root

(c) Stem

(d) Flower

Answer: B

5. In Bt Cotton, the Bt toxin present in plant tissue as protoxin is converted into active toxin due to__________

(a) Alkaline PH of the insect gut

(b) Acidic pH of the insect gut

(c) Action of gut microorganism

(d) Presence of conversion factors in insect gut

Answer: A

6. The first human hormone produced by recombinant DNA technology is______

(a) Insulin

(b) Thyroxin

(c) Estrogen

(d) Progesterone

Answer:A

7. Which of the following Bt crops is being grown in India by the farmers?

(a) Brinjal

(b) Maize

(c) Soyabean

(d) Cotton

Answer: D

8. Tobacco plant resistant to a nematode have beencdeveloped 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

9. The first clinical gene therapy was given for treating__________

(a) Diabetes mellitus

(b) Chicken pox

(c) Rheumatoid arthritis 

(d) Adenosine Deaminase deficiency 

Answer: D

10. Which body of the Government of India regulates GM research and safety of introducing GM organisms for public services________

(a) Bio-safety committee

(b) Indian council for Agriculture Research

(c) Genetic engineering Approval Committee

(d) Research Committee on Genetic Manipulation.

Answer: C

11. Maximum number of existing transgenic animalsis of_________

(a) Fish

(b) Cow

(c) Pig

(d) Mice

Answer: D

12. Genetic engineering has been successfully used for producing:

(a) Transgenic mice for testing safety of polio vaccine before use in humans________

(b) Transgenic models for studying new treatments for certain cardiac diseases

(c) Transgenic cow – Rosie which produces high fat milk for making ghee

(d) Animals like bulls for farm work as they have super power

Answer: A

13. Transgenic animals are those which have________

(a) Foreign DNA in some of its cells

(b) Foreign DNA in all its cells

(c) Foreign RNA in all its cells 

(d) DNA and RNA both in the cells

Answer: B

14. Use of bioresources by multinational companies and organisations without authorisation from the concerned country and its people is called_______

(a) Biodegradation

(b) Bio-infringement

(c) Biopiracy

(d) Bioexploitation

Answer: C

15. The silencing of mRNA has been used in producing transgenic plants resistant to:

(a) Boll worms

(b) White rusts

(c) Nematodes

(d) Bacterial blights

Answer: C

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