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STD 12 - 10. biotechnology and its application — Biology STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 ScienceBiologySTD 12 - 10. biotechnology and its application1 Mark
MCQ
Assertion : Insect resistant transgenic cotton has been produced by inserting $Bt$ gene.

Reason : The $Bt$ gene is derived from a bacterium.

  • A
    If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.
  • ✓
    If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.
  • C
    If the Assertion is correct but Reason is incorrect.
  • D
    If both the Assertion and Reason are incorrect.
✓

Answer

Correct option: B.
If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.
b
$Bt-$ cotton is a transgenic crop. Transgenic plants are those plants, which have foreign gene incorporated in their $DNA$. This insect resistant gene is derived from a bacterium, Bacillus thuringiensis.

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