This section includes 7 InterviewSolutions, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Write down the uses of incubator in blood bank. |
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Answer» Incubators are mainly used for. 1. Determination of enzyme’s in the specimen by end point reaction methods. 2. Determination of glucose, urea, uric acid etc., by enzymatic methods. 3. Growing microorganisms on various culture media. 4. Right temperature for immune antigen reaction. |
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| 2. |
(a) Animal cells in a culture medium were placed in a regular incubator used for growing bacterial cells. Do you expect the animal cells to grow in it? (b) What are Interferons? |
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Answer» (a) No, animal cells need a CO2 incubator. (b) Interferons are proteins secreted by virally infected cells and interfere with viral propagation. |
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| 3. |
The laboratory scale design cannot be scaled up to industrial scale directly. Write any two points that need to be considered while going for industrial scale production. |
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Answer» Bulk purchase of chemicals and other raw materials would bring down costs. The labour cost decreases sharply with increase in production. |
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| 4. |
How does the metagenomics approach help to identify novel genes present in the environment? Explain the process. |
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Answer» Metagenomics approach has been developed to identify and select microbial genes synthesizing novel molecules. This approach utilizes the large number of microbial genomes present in an environmental niche (eg. in soil, in water such as ocean or in human gut). These genomes are contributed by both the culturable and the nonculturable variety of microbes and together constitute metagenome. |
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| 5. |
Specify two advantages of animal cell culture. |
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Answer» Advantages : Homogenous genetic population//Controlled physico-chemical environment// Easy to add genes (Transfection) // regulate protein levels (RNAi). Available in adequate numbers to do chemical study//Easy production of biopharmaceuticals. //No ethical clearance required. //Cost effective screening assays. |
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| 6. |
Write in detail about Autogenic succession and Allogenic succession. |
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Answer» Autogenic succession: Autogenic succession occurs as a result of biotic factors. The vegetation reacts with its environment and modifies its own environment causing its own replacement by new communities. This is known as autogenic succession. Example: In forest ecosystem, the larger trees produce broader leaves providing shade to the forest floor area. It affects the shrubs and herbs which require more light (heliophytes) but supports the shade tolerant species (sciophytes) to grow well. Allogenic succession: Allogenic succession occurs as a result of abiotic factors. The replacement of existing community is caused by other external factors (soil erosion and leaching, etc.,) and not by existing organisms. Example: In a forest ecosystem soil erosion and leaching alter the nutrient value of the soil leading to the change of vegetation in that area. |
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| 7. |
Enumerate the advantages of Artificial seeds. |
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Answer» Artificial seeds have many advantages over the true seeds as follows:
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| 8. |
Sterile seeds may be formed during crosses between distantly related plants. What could be the reason for this and how can it be overcome? |
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Answer» a. Abnormal development of the endosperm causes premature death of the hybrid embryo and leads to sterile seeds. b. The embryo from such sterile hybrid seeds can be excised at an appropriate time and cultured on a suitable nutrient medium to produce novel hybrid. |
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| 9. |
a. How are artificial seeds produced? b. State two ways in which artificial seeds are different from embryonic seeds |
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Answer» a. Use of certain hormones can convert somatic cells into state similar to embryos which are encapsulated to produce artificial seeds. b. Artificial seeds are bigger in size/ long term storage/potential for automation. |
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| 10. |
Whom did Borges look upon as an intelligent and a gracious woman? |
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Answer» Borges looks upon his mother as an intelligent and gracious woman. |
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| 11. |
The bicycle is ________ the house. A) near of B) front of C) next D) behind |
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Answer» Correct option is D) behind |
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| 12. |
Do you know Peter? A) Yes, I know. B) No, I’m not. C) Yes, I do. D) No, I don’t know |
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Answer» Correct option is C) Yes, I do. |
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| 13. |
Rose ________ to sing on Saturday, A) can B) will C) is going D) shall |
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Answer» Correct option is C) is going |
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| 14. |
Three masked men ________ the city bank early this morning. A) robbed B) attacked C) stole D) took E) spoilt |
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Answer» Correct option is A) robbed |
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| 15. |
Can you see ________ the bottles? A) many beer into B) much beer into C) many beer in D) much beer in |
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Answer» Correct option is D) much beer in |
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| 16. |
We’ll do it ________ . A) 11 o’clock in this morning B) on 11 o’clock this morning C) this morning at 11 o’clock D) in this morning at 11 o’clock |
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Answer» Correct option is C) this morning at 11 o’clock |
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| 17. |
How does Borges reconcile with his blindness? Explain. |
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Answer» Borges explains that he had accepted it as a way of life, and was not entirely unhappy. He had accepted it as a ‘Resource’. He thinks that all things had been given to us for a purpose and an artist must feel this more intensely. All that happens to us, including humiliations, misfortunes have to be used as raw material to shape art. He says that even though he is blind, it is his duty to accept it and enjoy things pretending that he is not blind. Even though he is blind he still bought books and filled his house with them. |
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| 18. |
John is ________ . A) a friend of me B) a friend mine C) a friend of mine D) one friend of mine |
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Answer» Correct option is C) a friend of mine |
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| 19. |
Our house is ________ Washington Street A) in B) from C) at D) on |
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Answer» Correct option is D) on D) on will be the correct answer |
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| 20. |
We ______ play basketball without a ball. A) can’t B) needn’t C) could D) doesn’t |
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Answer» Correct option is A) can’t |
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| 21. |
Does he ______ go to school at eight ? A) must B) should C) has to D) have to |
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Answer» Correct option is D) have to |
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| 22. |
My father ______ an apple now. He ______ an apple every day. A) eating / eats B) eats / is eating C) ate / is eating D) is eating / eats |
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Answer» Correct option is D) is eating / eats |
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| 23. |
Do the girls know Tom? A) Yes, they knows her. B) No, they isn’t. C) Yes, they know. D) No, they don’t. |
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Answer» Correct option is D) No, they don’t. |
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| 24. |
I don’t know _______ to telephone. A) whom did Tom want B) why was Tom going C) when is Tom D) who Tom was going |
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Answer» Correct option is D) who Tom was going |
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| 25. |
Tom gets up early, but Sarah ______. A) didn’t B) isn’t C) does D) doesn’t |
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Answer» Correct option is D) doesn’t |
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| 26. |
The lamp is ________ the television. A) at B) next to C) near of D) between |
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Answer» Correct option is B) next to |
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| 27. |
I arrived _____ England last month. A) at B) to C) in D) for |
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Answer» Correct option is C) in |
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| 28. |
My classmates _____ on picnic every month. A) went B) goes C) going D) go |
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Answer» Correct option is D) go |
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| 29. |
I live _____ the third floor. A) at B) on C) by D) in |
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Answer» Correct option is B) on |
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| 30. |
John doesn’t like beer and ________ . A) so I do B) so do I C) neither I do D) neither do I |
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Answer» Correct option is D) neither do I |
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| 31. |
Molly doesn’t eat fish. A) So doesn’t John. B) Neither does John. C) John doesn’t too.D) John doesn’t that either. |
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Answer» Correct option is B) Neither does John |
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| 32. |
There’s ________ those bottles there. A) much beer on B) much beers in C) a lot of beer in D) a lot of beer on |
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Answer» Correct option is C) a lot of beer in |
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| 33. |
The cup is ________ the radio. A) at B) near C) between D) next |
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Answer» Correct option is B) near |
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| 34. |
In England the cars go ___ the left side. A) in B) near C) of D) to E) on |
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Answer» Correct option is E) on |
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| 35. |
___ general everything was all right. They thought they were walking ___ the direction ___ the village when they lost the way. A) for/in/to B) in/to/of C) in/in/of D) by/to/to E) in/in/to |
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Answer» Correct option is C) in/in/of |
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| 36. |
Great Britain consists ___ three parts. A) of B) with C) from D) in E) by |
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Answer» Correct option is A) of |
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| 37. |
Helen has finished her school and ____ . A) so did her brother B) so has her brother C) so finished her brother D) so her brother has |
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Answer» Correct option is B) so has her brother |
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| 38. |
Have you got any hobbies? -Yes, I have. I like English. -___ . A) So have I B) So has he C) Neither have I D) So do I E) Neither do you |
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Answer» Correct option is D) So do I |
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| 39. |
The train stopped ___ all the stations and long before we got ___ London every seat was taken and people were standing ___ the corridors. A) to/at/in B) in/to/ C) at/in/on D) at/to/in E) -/in/at |
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Answer» Correct option is D) at/to/in |
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| 40. |
Rose doesn’t like horror films and ____. A) James doesn’t too B) James doesn’t either C) James doesn’t neither D) nor doesn’t James |
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Answer» Correct option is B) James doesn’t either |
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| 41. |
My friend doesn’t like detective stories. A) Neither do I. B) Neither I do. C) I do either. D) So do I. E) I do neither. |
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Answer» Correct option is A) Neither do I. |
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| 42. |
Fill in the blanks with the right linker: The death sentence was altered to life imprisonment. This would enable the Prince to show hismercy _________ it would come cheaper. But implementing the sentence was a difficult task_________ there was no strong prison fit for permanent use. _________ they managed to find aplace _________ would serve the purpose.(because, and, which, however) |
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Answer» and because however 01-AND 02-BECAUSE 03-HOWEVER 04-WHICH |
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| 43. |
He decided to give up sport in order to concentrate _____ his studies. A) in B) at C) on D) to |
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Answer» Correct option is C) on |
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| 44. |
Write a discription about Taj mahal. |
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Answer» The renowned Taj Mahal was brought to life by the vision of the Mughal Emperor Shah Jahan. He got this monument built for his beloved wife, Mumtaz Mahal after she passed away. To honor the memory of his loving wife, Shah Jahan ordered the finest artisans from all over the world to build it. He wanted to make something that had never been done before for anyone. The emperor wished to give the last gift to his wife whom he loved very much. Even till date, people sing praises about Shah Jahan’s grand gesture. It makes you believe in love and appreciate it like never before. We also see how under the tomb lies the body of the eternal lovers. Shah Jahan and Mumtaz Mahal are buried next to each other and even after death, they remained side by side. |
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| 45. |
a) Add a Prefix or suffix to make new words.i) respect-ii) skill- |
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Answer» i) irrespect, ii) unskilled
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| 46. |
Nothing can make up _____ his rudeness. A) for B) with C) against D) by |
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Answer» Correct option is A) for |
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| 47. |
The danger from any radioactive substances depends_____ where they are located. A) in B) at C) on D) to |
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Answer» Correct option is C) on |
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| 48. |
Give the name of medicine having - As = As - linkage. |
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Answer» [Hint : Arsphenamine.] |
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| 49. |
(a) What are neutral oxides? Explain the nature of zinc oxide with the help of the reactions. (b) Define ‘molar conductivity’ and ‘zero order reaction’. (c) In a first order reaction x → y, 40% of the given sample of compound remains unreacted in 45 minutes. Calculate rate constant of the reaction. |
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Answer» a. 1. Neutral oxides: Oxides which are neither acidic nor basic are called as neutral oxides. eg. CO, NO and N2O 2. ZnO is an amphoteric oxide (show both acidic and basic characterstics). This oxide react with acids as well as bases to form salts. Basic character (Reaction with acid) ZnO(s) (Basic) + 2HCL(eq) → ZnCl2(eq) (Zinc chloride) + H2O(l) Acidic character (Reaction with base) ZnO(eq) (Acidic) + 2NaOH (excess) → Na2ZnO2(eq) + H2O(l) b. 1. Molar conductivity is defined as the conductance of a volume of solution containing 1 mole of dissolved electrolyte when placed between two parallel electrodes 1 cm apart and large enough to contain between them all the solution. 2. Zero order reaction is the reaction whose rate is independent of the reactant concentration and remains constant throughout the course of the reaction. c. Given: For a first order reaction, amount of reactant that remains after 45 minutes = 40% To find: Rate constant (k) Formula : k = \(\frac{2.303}{t}log_{10}\frac{[A]_o}{[A]_t}\) Calculation: [A]0 = 100, [A]t = 40, t = 45 min From formula, k = \(\frac{2.303}{t}log_{10}\frac{[A]_o}{[A]_t}\) ∴ k = \(\frac{2.303}{t}log_{10}\frac{100}{40}\) ∴ k = 0.02036 min–1 |
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| 50. |
Number of moles of `K_(2)Cr_(2)O_(7)` required to oxidised `12` moles of ethanol to acetic acid in acidic meidum will be |
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Answer» Correct Answer - 8 `C_(2)H_(6)O+H_(2)OrarrCH3COOH+4H^(+)+4e^(-)` g. Eq. of `K_(2)Cr_(2)O_(7)=g` Eq. of `C_(2)H_(6)O` `K_(2)Cr_(2)O_(7)=C_(2)H_(6)O` `nxx6=12xx4` `n=8` |
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