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CBSE Class 12 (Science) Biotechnology and its Applications — practice questions — page 3

Explore 66 free Biotechnology and its Applications questions in CBSE Class 12 (Science) Biology. Open each question or exercise to read its content, reference answers and available explanation.

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Biotechnology and its Applications questions and exercises with answers

Showing questions 61–66 of 66.

Transgenic mice may replace which animals in testing polio vaccine safety?Read the answer and worked solution →What is the advantage of toxicity testing in transgenic animals?Read the answer and worked solution →What does GEAC stand for in India?Read the answer and worked solution →Using bio-resources without authorisation or payment is called what?Read the answer and worked solution →In 1997 an American company got a US patent on which Indian crop?Read the answer and worked solution →About how many rice varieties are estimated to exist in India?Read the answer and worked solution →

Worked practice questions

Transgenic mice may replace which animals in testing polio vaccine safety?

  1. Rabbits
  2. Chimpanzees
  3. Monkeys
  4. Guinea pigs
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Correct answer: C. Monkeys

If reliable, transgenic mice could replace monkeys for checking the safety of polio vaccine batches.

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What is the advantage of toxicity testing in transgenic animals?

  1. Cheaper animal feed
  2. Quicker results
  3. No ethical concern
  4. No dosing needed
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Correct answer: B. Quicker results

These animals carry genes making them more sensitive to toxins, so results come sooner.

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What does GEAC stand for in India?

  1. Genetic Engineering Approval Committee
  2. General Ecology Action Council
  3. Gene Export Authority Cell
  4. Genome Evaluation Advisory Board
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Correct answer: A. Genetic Engineering Approval Committee

GEAC was set up to decide on the validity of GM research and safety of releasing GM organisms.

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