InterviewSolution
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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Crystals of Bt toxin produced by some bacteria do not kill the bacteria themselves becauseA. toxin is inactiveB. toxin is immatureC. bacteria are resistant to the toxinD. bacteria enclose toxin in a special sac |
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Answer» Correct Answer - A Crystals of bt toxin produced by some bacteria do not kill the bacteria themselves because toxin is inactive |
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| 2. |
Crystals of Bt toxin produced by some bacteria do not kill the bacteria themselves becauseA. bacteria are resistant to the toxinB. toxin is immature:C. toxin is inactive:D. bacteria encloses toxin in a special sac. |
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Answer» Correct Answer - A::C In bacteria, the toxin is present in an inactive form, called prototoxin, which gets converted into active form when it enters the body of an insect. |
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| 3. |
Match the column: |
| Answer» Correct Answer - 1-d, 2-a, 3-b, 4-c | |
| 4. |
Genetically engineered human insuling is produced inA. enthamoeba coliB. yeastC. escherichia coliD. rhizopus |
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Answer» Correct Answer - C Geneticall engineered human insulin is produced in escherichia coli |
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| 5. |
Human protein `alpha-1` antitrypsin used to treat________. |
| Answer» Correct Answer - Emphysema | |
| 6. |
Name of the first transgenic cow is:- |
| Answer» Correct Answer - Rosie | |
| 7. |
Genetically engineered bacteria are being employed for production ofA. melationB. testosteroneC. human insulinD. thyroxine |
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Answer» Correct Answer - C Genetically engineered bacteria are bing used in commerial productiono fhuman insulin |
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| 8. |
Bacillus thuringiensis forms crystals which contain insecticidal protein. This proteinA. binds with epithelial cells of mid gut of the insectpest ultimate killing itB. is coded by severaly genes includeing the gene cryC. is activated by acid ph of the foregut of the insect pestD. Does not kill the carrier bacterium which is itself resistant to the toxin |
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Answer» Correct Answer - A Bacillus thuringiensis form protein which contain insecticidal protein . This protein binds with epithelial cells of mid gut of the insect pest ultimately killing it |
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| 9. |
Hirudin isA. a protein produced by hordeum vulare which is rich in lysineB. a toxic molecule isolated from gossypium hirsutum which reduces human fertilityC. a portien produces form tansgenic brassica napus which prevent blood clottingD. an antibiotic produced by geneitcally engineered bacterium escherichia coli |
| Answer» Correct Answer - A | |
| 10. |
Hirudin isA. a protein produced by Hordeum vulgare, which is rich in lysineB. a toxic molecule isolated from Gossypium hirsutum, which reduces humn fertilityC. a protein produced from transgenic Brassica napus which prevents blood clottingD. an antibiotic produced by a genetically engineered bacterium Escherichia coli |
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Answer» Correct Answer - C Hirudin is a protein that stops blood clotting. The gene encoding hirudin was chemically synthesised. This gene was then transsferred into Brassica napus, where hirudin accumulates in seeds. The hirudin is purified and used as medicine. |
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| 11. |
Cyanongen bromide is employed inA. genetic finger printingB. tissue cultureC. synthises of humulinD. hybridoma technology |
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Answer» Correct Answer - C Cyangen bormide is employed in syntheisis of humulin |
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| 12. |
Transgenic hirudin is obtained from:A. ocimum sanctumB. brassica napusC. potatoD. tomato |
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Answer» Correct Answer - B Transgenic hirudin is obtanined from brassica napous |
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| 13. |
The milk of first transgenic cow contained a human protein______. |
| Answer» Correct Answer - Human alpha-lactalbumin | |
| 14. |
Human proteins can be produced in the milk or semen of farm animals. True of false?A. trueB. flase proteins cannot be produced in semenC. false protein cannot be produced in milkD. false animals are not used for protein production |
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Answer» Correct Answer - A Human proteins can be prduced in milk or semen of farm animals |
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| 15. |
A transgenic food crop which may help in solving the problem of night blindness in developing countries isA. Bt cottonB. golden riceC. FlavrD. Bt corn |
| Answer» Correct Answer - B | |
| 16. |
Golden colour of Rice is due to occurrence ofA. vitamin AB. viamin CC. vitamin KD. viamin `B_(6)` |
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Answer» Correct Answer - A Golden color of rice is due to occurrence of vitamin A |
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| 17. |
Read the given statements and select the correct option Statement 1 : Foods derived from transgenic crops are called as GM foods Statement 2 : Health and food safety concerns have been raised to ensure the safety of GM foods.A. Both statements 1 and 2 are correctB. Statement 1 is correct but Statement 2 is incorrectC. Statement 1 is incorrect but Statement 2 is correctD. Both Statements 1 and 2 are incorrect |
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Answer» Correct Answer - A Crops in which foreign genes been introduced through genetic engineering are called genetically modified crops or GM foods. There have been many health and safety concern, therefore, such foods undergo lots of examination before release. |
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| 18. |
Find out from internet what is golden rice. |
| Answer» Golden rice is a genetically modified variety of rice, Oryza sativa, which has been developed as a fortified food for areas where there is a shortage of dietary vitamin A. It contains a precursor of pro-vitamin A, called beta-carotene, which has been introduced into the rice through genetic engineering. The rice plant naturally produces betacarotene pigment in its leaves. However, it is absent in the endosperm of the seed. This is because beta-carotene pigment helps in the process of photosynthesis while photosynthesis does not occur in endosperm. Since beta- carotene is a precursor of provitamin A, it is introduced into the rice variety to fulfil the shortage of dietary vitamin A. It is simple and a less expensive alternative to vitamin supplements. However, this variety of rice has faced a significant opposition from environment activists. Therefore, they are still not available in market for human consumption. | |
| 19. |
Assertion : GM salmon was the first transgenic animal for performing vaccine safety tests Reason : For the production of GM salmon, genetically modified ova were fused with normal sperms of the same species.A. If both assertion and reason are true and reason is the correct explanation of assertionB. If both assertion and reason are true but reason is not the correct explanation of assertionC. If assertion is true but reason is falseD. If both assertion and reason are false |
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Answer» Correct Answer - D Genetically modified (GM) organisms are those organisms that have their genetic material modified to meet some desired conditions. They generally carry a foreign gene in their DNA. GM salmon was the first transgenic animal for food production. It was procuced by fusion of normal ova (eggs) with genetically modified sperms. The zyotes with modified gene developed into embryos which gace rise to much bigger adults than either parent, thus have greater food value. It is achieved by addition of a gene that codes for the growth hormone that allows the fish to grow larger more rapidly than the non-transgenic shown. |
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| 20. |
Use of bioresource by mutinational (GEAC) organisation without authorisation from the concerned country and its people is calledA. bio infirngementB. biopiracyC. biodegradationD. bioexplaotation |
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Answer» Correct Answer - B Use of bioresources by multinaltional companies and organisations without authorisation from the concerned country and its people is called biopiracy |
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| 21. |
Golden rice will help inA. producing petrol like fuelB. pest resistanceC. herbicide toleranceD. alleviation of vitamin a deficiency |
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Answer» Correct Answer - D Golden rice will help in allevation of vitamin a deficiency |
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| 22. |
Biopiracy meansA. use of biopatentsB. thefts of plants and animalsC. stealing of bioresourcesD. exploitation of bioresources without authentic permission |
| Answer» Correct Answer - D | |
| 23. |
Bt cotton genes repelA. bacterial pathogensB. fungal pathogensC. nematode parasitesD. insect pests |
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Answer» Correct Answer - D Bt cotton genes replel insect pests |
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| 24. |
Assertion : Genetic modification of organisms can have unpredictable result when such organisms are introduced in to the ecosystem Reason : The modification /usage of living organisms for public services (as food and medicine sources for example) has also created problem with patents granted for the sameA. If both assertion and reason are true and the reason is the correct explanation of the assertionB. If both assetion and reason are true but reason is not the correct explantion of the assertionC. If assertion is true but reason is falseD. If both assertion and reason are false |
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Answer» Correct Answer - B Genetic modification of organisms can have unpredicatable results when such organisms are introduced into the ecosystem The modification / usage of living organisms for public services (as food and medicine sources for example ) has also created problems wiht patents granted for the same |
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| 25. |
Transgeneic animals are those which haveA. foregn DNA in some of its cellsB. Foreign DNA in all its cellsC. Foregin RNA in all its cellsD. DNA and RNA both in the cells |
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Answer» Correct Answer - B Transgenic animlas are those have foreign DNA in all its cells |
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| 26. |
Assertion : Transgenic mice are being developed for use in testing the safety of vaccines Reason: If successful and found reliable they could replace the use fo monkeys to test the safety of batches of the vaccineA. If both assertion and reason are true and the reason is the correct explanation of the assertionB. If both assetion and reason are true but reason is not the correct explantion of the assertionC. If assertion is true but reason is falseD. If both assertion and reason are false |
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Answer» Correct Answer - B Transgenic mice are being developed ofr use in testing the safety of vaccines If successful and found reliable they could replace the use of monkeys to test the safety of batches of the vaccine |
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| 27. |
Salt tolerant transgenic has been developed forA. brinjalB. potatoC. tomatoD. grape |
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Answer» Correct Answer - C Salt tolerant transgenic has been developed for tomato |
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| 28. |
Biopiracy isA. exploitation of bioresoucesB. patening bioresources of otherC. use of bioresources wihtout authorisationD. both b and c |
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Answer» Correct Answer - D Biopiraicy is patenting bioresources of others and use of bioresources without authorisation |
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| 29. |
Transgennic plant are developed byA. introducing foregin genesB. introducign gene mutationC. deleting certain chromosome partsD. stopping spindle formation |
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Answer» Correct Answer - A Transgenic plants are developed by introducing foreign genes |
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| 30. |
In transgenics the expression of transgene in the target tissue is know byA. enhanceerB. transgeneC. promterD. reporter |
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Answer» Correct Answer - D In transgenic s the expression of transgene in the target tissue is know by reporter |
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| 31. |
which of the following is a transgenic plant?A. flavr savrB. ashyba gossypiiC. meloidegyne incognitiaD. gluconobacter axidans |
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Answer» Correct Answer - A Flavr savr is a tansgenic plant |
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| 32. |
First transgenic plant released for commericial use wasA. Bt cottonB. tobaccoC. golden riceD. solan gola |
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Answer» Correct Answer - B First transgeneic plant realesed for commercial use was tabacco |
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| 33. |
Very low concentration of a bacteria or virus (at a time when the syptoms of the diseae are not yet visible) can be detected by |
| Answer» Correct Answer - Amplification of their nucleic acid by PCR | |
| 34. |
A transgenic plant having higher storage protein isA. riceB. maizeC. tomatoD. potato |
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Answer» Correct Answer - D A transgenic plant having higher storage protens is potato |
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| 35. |
Transgenic plants are plants havingA. no geneB. gene in transpostionC. genes have no function to performD. genes of an other organism |
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Answer» Correct Answer - D Transgenic plants are plants having genes of another organism |
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| 36. |
Green Revolution succeeded in increasing the yield of the crops by a factorA. 4B. 3C. 2D. 5 |
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Answer» Correct Answer - B Green revolution succeeded in increasing the yield of the crops by a factors three |
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| 37. |
Though Green Revolution has been a resounding success in terms of agricultural production, yet it has failed in its overall social objectives becauseA. it has not succeeded in making India totally and permanently self-sufficient in foodB. use of agrochemicals becomes very expensive for indian farmers as well as these have harmful effects on envionmentC. in regional terms, only Punjab and Haryana states, and the eastern plains of rivers Ganges in West Bengal state, showed reasonably good results, but results were less impressive in other parts of indiaD. all of these |
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Answer» Correct Answer - D The development of several high yielding varieties of wheat and rice in 1960 increased yields per unit area. This phase is often called the Green Revolution. However, for farmers in the developing world, agrochemicals are often too expensive, and further increase in yield with existing varieties are not possible using conventional breeding. Thus, it has not fully succeeded in making india totally self-sufficient in food with only some parts showing impressive results. |
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| 38. |
Assertion : Transgenic plants having virus coat protein gene, express resistance to that virus and other related varieties Reason : Coat protein gene interferes with uncoating of viruses inside the plant cells.A. If both assertion and reason are true and reason is the correct explanation of assertionB. If both assertion and reason are true but reason is not the correct explanation of assertionC. If assertion is true but reason is falseD. If both assertion and reason are false |
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Answer» Correct Answer - A Transgenic plants having virus coat protein gene linked to a strong promoter have been produced in many crop plants e.g., tabacco,tomato,alfalfa,sugar beet, potato,etc. the first transgenic plant of this type was tobacco produced in 1986, which contained coat protein gene of Tobacco Mosaic. Virus (TMV) strain. `U_(1)`. Most likely the resistance generated by CP (coat protein gene) is due to the blocking of the process of uncoating of virus particles, which is neccessary for viral genome replication as well as expression. However, other effects seem to be involved in producing coat protein mediated virus resistance. |
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| 39. |
Assertion : Green revolution was comparatively less effective in developing world where farmers were dependent on conventional breeding Reason : In developing world, inability to buy expensive agro-chemicals forced farmers to rely on conventional breeding.A. If both assertion and reason are true and reason is the correct explanation of assertionB. If both assertion and reason are true but reason is not the correct explanation of assertionC. If assertion is true but reason is falseD. If both assertion and reason are false |
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Answer» Correct Answer - A Given revolution was the phase of enormous increase in the agricultural production when high yielding improved varieties of crop plants were used. But the increased yield was partly due to use of improved crop varieties but mainly due to use of better management practies and agrochemicals (chemical and fertilisers). These practics and agrochemicals were generally very expensive in developing world which the farmers could not affort. Hence, the farmers of developing world could not affors. Hence, the fgarmer of developing world relied mainly on cheaper methods of conventional breeding thus green revolution could method of conventional breeding thus green revolution could not become as productive or effective as it was in developed world. |
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| 40. |
If a person is born with a hereditary disease, which corrective therapy be taken for such a disease |
| Answer» Correct Answer - Gene therapy | |
| 41. |
In RNAi, genes are silenced usingA. ssDNAB. dsDNAC. dsRNAD. ssRNA |
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Answer» Correct Answer - C RNAi takes place in all eukaryotic organisms as a method of cellular defense. This method inolves silencinf of a specific mRNA due to a complementary dsRNA molecule that binds to and prevents translation of mRNA (silencing). The source of this complementary RNA could be from an infection by viruses having RNA genomes or mobile genetic elements (transposons) that replicate via an RNA intermediate. |
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| 42. |
The first clinical gene therapy was given in 1990 to a 4 years old with enzyme deficiency ofA. adenosine deaminase (ADA)B. tyrosine oxidaseC. monaine oxidaseD. monamine oxidase |
| Answer» Correct Answer - A | |
| 43. |
The first clinical gene therapy was done for the treatment ofA. AIDSB. cancerC. cystic fibrosisD. SCID (Severe Combined Immuno Deficiency resulting from deficiency of ADA). |
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Answer» Correct Answer - D The first clinical gene therapy was given in 1990 to a 4-year old girl with adenosine deaminase (ADA) deficiency. This enzyme is very important for the immune systen to function. ADA deficiency can lead to severe combined immune deficiency (SCID). |
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| 44. |
First clinical application of gene therapy was used in 1990 over a four year old girl forA. adnosine deficiencyB. adenine deficiencyC. growth deficiencyD. adenosine deaminase deficiency |
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Answer» Correct Answer - D First clinicla application of gene therapy was used in 1990 over a four year old girl for adenosing both deamineas deficiency |
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| 45. |
During the processing of proinsulin into the mature unsulinA. C-peptide is added to proinsulinB. C -peptide is removed from proinsulinC. B-peptide is added to proinsulinD. B-peptide is removed from proinsulin |
| Answer» Correct Answer - B | |
| 46. |
Maturation of proinsulin into insulin takes place afterA. joining of c peptideB. removal of c peptideC. removal of disulphide bridgeD. addition of disulphide bridge |
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Answer» Correct Answer - B Maturation of proinsulin into insulin takes place after remove of c peptide |
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| 47. |
Which of the following statements is not correct ?A. Most Bt toxins are insect group specificB. RNAi takes place in all eukaryotic as well as prokaryotic organisms as a method of cellular defenseC. The recombinant therapeutics do not induce unwanted immunological responses in humansD. Adult-onset diabetes can be controlled by taking insulin at regular time intervals |
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Answer» Correct Answer - B RNA interference (RNAi) takes place in all eukaryotic organisms as a method of cellular defense |
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| 48. |
Protein products of Bt genes cry IAc and cry II Ab controlA. roundwormB. mothC. bollwormD. fruitfly |
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Answer» Correct Answer - C Protein products of bt genes cyr I ac and cry II ab control bollworm |
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| 49. |
An example of gene therapy isA. bt cottonB. flavr savr tomatoC. pusa swarnimD. goden rice |
| Answer» Correct Answer - A | |
| 50. |
The first clinical gene therapy was given in_________. |
| Answer» Correct Answer - 1990 | |