Biotechnology and its Applications

Bihar Board Class 12 · Biology · 21 past questions

1. Q1 2026 Set A

   Why does Bt toxin protein not kill the Bacillus ?

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2. Q2 2026 Set A

   Which technique was used to prevent infection of tobacco plants from Meloidegyne incognitia tapeworm ?

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3. Q3 2026 Set A

   Gene therapy was first used to remove the deficiency of which of the following enzymes ?

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4. Q4 2026 Set A

   In 1997 an American company got the patent rights for a new variety of Basmati developed by hybridizing…

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5. Q5 2026 Set A

   Which human protein is found in milk of the first transgenic cow-Rosie?

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6. Q6 2025

   The proteins that cotton bollworms are encoded by which genes?

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7. Q7 2025

   Which of the following is absent in mature insulin?

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8. Q8 2025

   Which of the following techniques is used to prevent the infection of Meloidogyne incognitia in tobacco?

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9. Q9 2025

   Golden rice is rich in which vitamin?

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10. Q10 2024 Set E

    At what pH insecticidal protein synthesized by Bacillus thuringiensis becomes active?

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11. Q11 2024 Set E

    Which of the following is used for producing nematode specific genes in tobacco plants?

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12. Q12 2023

    Transgenic 'hirudin' is obtained from which of the following?

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13. Q13 2023

    Golden rice is a GMO plant in which the incorporated gene is meant for biosynthesis of –

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14. Q14 2021 Set H

    'Cry-gene' prevents which crop from bollworm ?

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15. Q15 2020

    In a transgenic golden rice, which vitamin is found in abundance?

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16. Q16 2020

    From which of the following is the Ti plasmid obtained?

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17. Q17 2019

    Comment upon G.M.O.

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18. Q18 2019

    Explain Bio-piracy in brief.

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19. Q19 2019

    Comment upon Ethical Issues in context of modern biological and advancement.

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20. Q20 2016

    Which of the following is DNA fingerprinting?

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21. Q21 2015

    Write the benefits of transgenic animals.

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