Biotechnology Questions and Answers

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Biotechnology questions with answers form an important part of general science aptitude questions and answers in competitive exams like NEET, CSIR NET, and UPSC. This field combines biology and technology to develop innovative solutions in medicine, agriculture, and genetics. Understanding concepts like DNA technology, cloning, and genetic engineering is essential for answering objective-type questions accurately. Explore this section for practice questions with solutions that will help you build conceptual clarity and confidence for upcoming science exams.

Biotechnology

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21. The vaccine against hepatitis B is produced by:

  • a) Chemical synthesis
  • b) Recombinant DNA technology
  • c) Live virus attenuation
  • d) Hybridoma technique
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22. The genetic material in retroviruses is:

  • a) DNA
  • b) RNA
  • c) Protein
  • d) Nucleoside
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23. Monoclonal antibodies are produced using:

  • a) Hybridoma technology
  • b) Cloning
  • c) Gene splicing
  • d) Electrophoresis
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24. Which technique separates DNA fragments based on size?

  • a) Chromatography
  • b) Centrifugation
  • c) Gel electrophoresis
  • d) Spectroscopy
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25. The purpose of biofertilizers is to:

  • a) Increase soil salinity
  • b) Improve soil fertility
  • c) Kill pests
  • d) Reduce photosynthesis
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