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NEET UG Biotechnology Applications — practice questions

Explore 5 free Biotechnology Applications questions in NEET UG Biology. Open each question or exercise to read its content, reference answers and available explanation.

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Biotechnology Applications questions and exercises with answers

Showing questions 1–5 of 5.

Planting refuge areas of non-Bt crops beside Bt fields helps to:Read the answer and worked solution →In the insect gut, activated Cry toxin binds to which proteins?Read the answer and worked solution →In Arizona, Bt-resistant pink bollworms were curbed by releasing:Read the answer and worked solution →A crop expressing the Bt toxin gene in effect acts as a:Read the answer and worked solution →Gene therapy corrects a genetic defect mainly by delivering a:Read the answer and worked solution →

Worked practice questions

Planting refuge areas of non-Bt crops beside Bt fields helps to:

  1. Slow pest resistance
  2. Raise cotton yield
  3. Improve soil nitrogen
  4. Attract pollinators
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Correct answer: A. Slow pest resistance

Refuges keep susceptible pests alive to mate with resistant ones, which slows the spread of resistance.

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In the insect gut, activated Cry toxin binds to which proteins?

  1. Cadherin-like proteins
  2. Keratin proteins
  3. Histone proteins
  4. Collagen fibres
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Correct answer: A. Cadherin-like proteins

Activated Cry molecules attach to cadherin-like proteins on the brush border of gut cells.

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In Arizona, Bt-resistant pink bollworms were curbed by releasing:

  1. Parasitic wasps
  2. Sterile male moths
  3. Fungal spore sprays
  4. Predatory beetles
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Correct answer: B. Sterile male moths

Sterile males mated with the surviving resistant females, so few offspring were produced.

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More Biology topics

Genetics and EvolutionReproduction in Organisms & PlantsBiotechnology and ApplicationsBiodiversity and ConservationThe Living World & Biological ClassificationNeural Control and Chemical CoordinationPrinciples of Inheritance and VariationAnimal Kingdom