MCQ Questions for Class 12 Biology: Ch 12 Biotechnology and its Applications
1. Toxicity of drug on human can be studied by using transgenic animal by
(a) Introducing complementary gene into organism
(b) Inoculating gene that make them more sensitive to toxic substances
(c) Introducing gene that show change in physiology of organism
(d) All of the the above
► (b) Inoculating gene that make them more sensitive to toxic substances
2. Seeds of golden rice are yellow in colour because
(a) It has vitamin E encoding gene
(b) Provitamin A is produced in the entire grain
(c) It has vitamin B encoding gene
(d) It is a biproduct of 3 genes
► (b) Provitamin A is produced in the entire grain
3. Domestic cooking gas cylinder is filled with
(a) Alcohol
(b) Diesel oil
(c) Liquid petroleum gas
(d) Coal gas
► (c) Liquid petroleum gas
4. Which group is not related with petroplantation
(a) Euphorbiaceae
(b) Asclepiadiaceae
(c) Apocyanaceae
(d) Leguminaceae
► (d) Leguminaceae
5. Formation of vinegar from alcohol is caused by
(a) Bacillus subtilis
(b) Clostridium
(c) Acetobacter aceti
(d) Azotobacter
► (c) Acetobacter aceti
6. GM Arabidopsis produces dsRNA to
(a) To produce more protein product
(b) To stop transcription
(c) Knock out specific parasitic genes in the nematode
(d) To make DNA non functional
► (c) Knock out specific parasitic genes in the nematode
7. For which of the disease transgenic models do not exists now days?
(a) Tuberculosis
(b) Cancer
(c) Cystic fibrosis
(d) Alzheimer’s disease
► (a) Tuberculosis
8. For biogas production, besides dung, which of the following is used as manure
(a) Eichhornia
(b) Parthenium
(c) Glycine
(d) Arachis
► (a) Eichhornia
9. The pioneer country in the production of 'Fuel alcohol' is
(a) Japan
(b) Brazil
(c) Saudi Arabia
(d) India
► (b) Brazil
10. Conversion of sugar into alcohol during fermentation is due to the direct action of
(a) Temperature
(b) Microorganisms
(c) Zymase
(d) Concentration of sugar solution
► (c) Zymase
11. Biopiracy is
(a) Monitoring GMO’s
(b) Commercial production of GMO’s
(c) Governing research on GMO’s
(d) Use of bio resources without proper authorization
► (d) Use of bio resources without proper authorization
12. Biogas production from waste Biomass with the help of methanogenic bacteria is
(a) One step process
(b) Two step process
(c) Multi step process
(d) Three step process
► (c) Multi step process
13. Bacillus thuringiensis (Bt) strains have been used for designing novel
(a) Bio-metallorgical techniques
(b) Bio-insecticidal plants
(c) Bio-mineralization processes
(d) Bio-fertilizers
► (b) Bio-insecticidal plants
14. Cry genes introduced in a plant will not be affective against
(a) lepidoptera
(b) hymenoptera
(c) coleoptera
(d) rodents
► (d) rodents
15. For biogas production besides dung an extensive use of which weed is recommended in our country
(a) Mangifera indica
(b) Hydrilla
(c) Eichhornia crassipes
(d) Solanum
► (c) Eichhornia crassipes
16. First fermented acid is :
(a) Gluconic acid
(b) Lactic acid
(c) Fumaric acid
(d) All the above
► (b) Lactic acid
17. Which of the following is an advantage of transgenesis?
(a) Study of diseases and gene therapy
(b) Increased production of biological products
(c) Vaccine safety testing
(d) All of the above
► (d) All of the above
18. Recombinant DNA technology prepared vaccine is called
(a) Second generation vaccine
(b) Third generation vaccine
(c) First generation vaccine
(d) Synthesized vaccine
► (b) Third generation vaccine
19. Humulin is the term used for
(a) A new antibiotic
(b) A sex hormone
(c) Human insulin
(d) A vaccine
► (c) Human insulin
20. Which of the following is used to manufacture ethanol from starch
(a) Penicilline
(b) Lactobacillus
(c) Azotobactor
(d) Saccharomyces
► (d) Saccharomyces
21. An example of petroleum plant is
(a) Zea mays
(b) Beta vulgaris
(c) Euphorbia lathyris
(d) Solanum tuberosum
► (c) Euphorbia lathyris
22. Mechanism of action of antibiotics are :
(a) Disruption of cell wall
(b) Inhibition of DNA/RNA synthesis
(c) Disruption of plasma lemma
(d) All of the above
► (d) All of the above
23. Saccharomyces cerevisiae is used in the formation of
(a) Ethanol
(b) Methanol
(c) Acetic acid
(d) Antibiotics
► (a) Ethanol
24. Important objective of biotechnology in agriculture section is
(a) To produce pest resistant varieties of plants
(b) To increase the nitrogen content
(c) To decrease the seed number
(d) To increase the plant weight
► (a) To produce pest resistant varieties of plants
25. Recently Govt. of India has allowed mixing of alcohol in petrol . What is the amount of alcohol permitted for mixing in petrol ?
(a) 5%
(b) 2.5%
(c) 10-15%
(d) 10%
► (a) 5%
26. Cry I Ab controls
(a) Stem Borer
(b) Corn Borer
(c) Cotton Bollworm
(d) Root pest
► (b) Corn Borer
27. The two polypeptide chains in insulin are linked via Sulphur. The bond formed is
(a) Peptide bond
(b) Glycosidic linkage
(c) Disulphide linkage
(d) Diester bond
► (c) Disulphide linkage
28. Which of the following is ionic detergent
(a) RPM
(b) HAT
(c) PEG
(d) SDS
► (d) SDS
29. Transgenic cow Rosie, produced human protein enriched milk that contain:
(a) 2.4 gram per litre
(b) 7.4 gram per litre
(c) 3.5 gram per litre
(d) 4.2 gram per litre
► (a) 2.4 gram per litre
30. Indicator of water pollution
(a) E. Coli
(b) Chlorella
(c) Beggiatoa
(d) Ulothrix
► (a) E. Coli
31. Cultivation of Bt cotton has been much in the news. The prefix Bt means
(a) “Barium treated” cotton seeds
(b) “Bigger thread” variety of cotton with better tensile strength
(c) Carrying an endotoxin gene from Bacillus thuringiensis
(d) Produced by “biotechnology” using restriction enzymes and ligases
► (c) Carrying an endotoxin gene from Bacillus thuringiensis
32. Who is credited with identifying petrocrops?
(a) M.S. Swaminathan
(b) M.Calvin
(c) K.Krebs
(d) N.Borlaug
► (b) M.Calvin
33. Insect resistance transgenic cotton has been produced by inserting a piece of DNA from
(a) A virus
(b) A bacterium
(c) A wild relative of cotton
(d) An insect
► (b) A bacterium
34. Which country has been successfully used alcohol as a motor fuel
(a) India
(b) U.S.A
(c) Brazil
(d) Canada
► (c) Brazil