How is transgenic tobacoo plant protected against Meloidegyne inc

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 Multiple Choice QuestionsLong Answer Type

51. Explain the following terms briefly

(a) Single cell proteins (b) Biopatent (c) Bioethics (d) Biopiracy (e) Genetically modified food.

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 Multiple Choice QuestionsShort Answer Type

52. Briefly explain why are Transgenic animals produced ?
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53. State the ethical issues in using  transgenic animals.
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 Multiple Choice QuestionsLong Answer Type

54. Compare and Contrast the advantages and disadvantages of production of genetically modified crops.
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55.

What is gene therapy? Illustrate using the example of adenosine deaminase (ADA) deficiency.

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 Multiple Choice QuestionsShort Answer Type

56. How  was the milk of the first transgenic cow Rosie different from the non transgenic cows?
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 Multiple Choice QuestionsLong Answer Type

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57. How is transgenic tobacoo plant protected against Meloidegyne incognita ? Explain the process ?


Protection of tobacco plant against Nematode  Meloidegyne incognita by using the method of RNA interference.


1. The specific genes  from the parasite are introduced into the plant using Agrobacterium as the vector.

2. The introduced gene produces both sense/coding RNA and antisense RNA .

3. The two RNA being complementary anneal and become double stranded RNA.

4. This ds RNA initiates RNAi and silences the mRNA of the nematode. 

5. As a result, the parasite cannot live in the transgenic host and the transgenic plant is protected from the pest.

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 Multiple Choice QuestionsShort Answer Type

58. Describe the responsibility of GEAC, set up by the Indian Government.
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59. Why insulin is being extracted from bacteria rather than animal source ?

Or

Name the source from whice insulin was extracted earlier.

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 Multiple Choice QuestionsMultiple Choice Questions

60. Biopiracy is related to which of the following ?
  • Transgenic animals
  • Genetics
  • Bioresources and their misuse.
  • All of the above
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