Development of Recombinant Vector Vaccines
Question
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.
Options
1 only
2 only
Both 1 and 2
Neither 1 nor 2
Explanation
Both statements are correct. Recombinant vector vaccines use genetic engineering to isolate the antigen gene of a targeted pathogen and insert it into a harmless vector's genome. Both modified viruses (such as Adenoviruses used in COVID-19 vaccines) and attenuated bacteria (such as Salmonella or BCG strains) serve as delivery vectors to trigger a protective immune response. > Recombinant vector vaccines apply genetic engineering to insert target antigens into live viral or bacterial vectors. Answer: (c).
Question details
Year
2021
Paper
GS Paper 1
Question
Q65
Subject
Science & Technology
Sub-topic
Biotechnology & Genetics
Type
Statement-based
Difficulty
Medium
Nature
Current-affairs-linked
Source hint
COVID-19 Vaccine platforms / NCERT Biology Cl.12
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