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With reference to recent developments regarding ‘Recombinant Vector Vaccines’, consider the following statements:

  1. 1.Genetic engineering is applied in the development of these vaccines.
  2. 2.Bacteria and viruses are used as vectors.

Which of the statements given above is/are correct?

  1. A.1 only
  2. B.2 only
  3. C.Both 1 and 2
  4. D.Neither 1 nor 2
▶ Answer & Explanation

Correct answer: C. Both 1 and 2

Recombinant vector vaccines utilize genetic engineering to insert genetic material from a pathogen into a harmless vector, often a modified virus or bacterium. This vector then expresses the pathogen's antigens, stimulating an immune response. Both genetic engineering and the use of modified organisms like bacteria and viruses as vectors are fundamental to their creation.

Source: UPSC gs1 2021

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