UPSC 2021ScienceModerate

With reference to recent developments regarding 'Recombinant Vector Vaccines', consider the following statements : 1. Genetic engineering is applied in the development of these vaccines. 2. Bacteria and viruses are used as vectors. Which of the statements given above is/are correct?

A
1 only
B
2 only
C
Both 1 and 2
Correct Answer
D
Neither 1 nor 2

Explanation

Both statements are correct because recombinant vector vaccines use genetic engineering to insert the genetic material of a target pathogen into a harmless carrier, which can be either a virus (like Adenovirus) or a bacterium (like attenuated *Salmonella*). Option (a) is the most tempting wrong choice as candidates often associate vectors exclusively with viruses due to high-profile COVID-19 vaccines, overlooking the established use of bacterial vectors in clinical research. The core concept being tested is the application of biotechnology and recombinant DNA technology in modern vaccine delivery systems.

Biotechnology & VaccinesRecombinant Vector Vaccinesrecombinant vector vaccinesgenetic engineeringbacteriavirusesvectorsvaccine development

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