SawaalBoxसवाल बॉक्स
2010 · Q58Science & TechnologyBiotechnology & Geneticseasy

Which feature of some species of blue-green algae helps promote them as bio-fertilizers ?

  1. (a)They convert atmospheric methane into ammonia which the crop plants can absorb readily.
  2. (b)They induce the crop plants to produce the enzymes which help convert atmospheric nitrogen to nitrates.
  3. (c)They have the mechanism to convert atmospheric nitrogen into a form that the crop plants can absorb readily.
  4. (d)They induce the roots of the crop plants to absorb the soil nitrates in larger quantities.
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Official answer(c) They have the mechanism to convert atmospheric nitrogen into a form that the crop plants can absorb readily.

2026 · Q66Science & TechnologyBiotechnology & Geneticsmoderate

Which of the following statements with regard to genetic medicine is/are correct ? 1. Genetic medicines correct/compensate for the faulty genes responsible for disease. 2. Engineered viruses and lipid nanoparticles are used as carriers of the genetic medicine. 3. Genetic medicines alter the entire DNA sequence. Select the answer using the code given below :

  1. (a)1 only
  2. (b)2 and 3 only
  3. (c)1 and 2 only
  4. (d)1, 2 and 3
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Official answer(c) 1 and 2 only

2026 · Q73Science & TechnologyBiotechnology & Geneticsmoderate

Which of the following statements with regard to GenomeIndia Project is/are correct ? 1. It is a part of the Human Genome Project. 2. The project is funded by the Department of Biotechnology (DBT), Government of India. 3. Its primary aim is to build a catalogue of genetic diversity of the Indian population. Select the answer using the code given below :

  1. (a)1 only
  2. (b)2 and 3 only
  3. (c)1 and 2 only
  4. (d)1, 2 and 3
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Official answer(b) 2 and 3 only

2025 · Q48Science & TechnologyBiotechnology & Geneticseasy

With reference to monoclonal antibodies, often mentioned in news, consider the following statements : I. They are man-made proteins. II. They stimulate immunological function due to their ability to bind to specific antigens. III. They are used in treating viral infections like that of Nipah virus. Which of the statements given above are correct?

  1. (a)I and II only
  2. (b)II and III only
  3. (c)I and III only
  4. (d)I, II and III
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Official answer(d) I, II and III

2023 · Q69Science & TechnologyBiotechnology & Geneticseasy

‘Aerial metagenomics’ best refers to which one of the following situations?

  1. (a)Collecting DNA samples from air in a habitat at one go
  2. (b)Understanding the genetic makeup of avian species of a habitat
  3. (c)Using air-borne devices to collect blood samples from moving animals
  4. (d)Sending drones to inaccessible areas to collect plant and animal samples from land surfaces and water bodies
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Official answer(a) Collecting DNA samples from air in a habitat at one go

2023 · Q70Science & TechnologyBiotechnology & Geneticseasy

‘Microsatellite DNA’ is used in the case of which one of the following?

  1. (a)Studying the evolutionary relationships among various species of fauna
  2. (b)Stimulating ‘stem cells’ to transform into diverse functional tissues
  3. (c)Promoting clonal propagation of horticultural plants
  4. (d)Assessing the efficacy of drugs by conducting series of drug trials in a population
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Official answer(a) Studying the evolutionary relationships among various species of fauna