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Science and Technology question from JKAS Prelims, 2022 by JKPSC

Match the following vaccines with their types:

1. Zycov-D – DNA vaccine
2. Sputnik – Vector-based vaccine
3. Moderna – mRNA vaccine
4. Covaxin – Live attenuated vaccine

How many pairs given above are correctly matched?

Last updated Jun 24, 2026
Correct Answer: Option C — Three pairs only
Based on the scientific classification of these vaccines, here is the breakdown of the matches:

Zycov-D – DNA vaccine: Correct. Developed by Zydus Cadila, this was the world’s first DNA plasmid vaccine for COVID-19.

Sputnik V – Vector-based vaccine: Correct. It uses a non-replicating viral vector (adenovirus) to deliver the genetic instructions to the body.

Moderna – mRNA vaccine: Correct. The Moderna vaccine (as well as the Pfizer-BioNTech vaccine) uses messenger RNA technology.

Covaxin – Live attenuated vaccine: Incorrect. Covaxin is an Inactivated (Killed) virus vaccine. It uses a "dead" version of the virus that cannot replicate but still triggers an immune response. (Examples of live attenuated vaccines include the Yellow Fever or MMR vaccines).
Answer verified by Quintessence Classes faculty — Karan Nagar, Srinagar.
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JKPSC JKAS 2022 Prelims

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Exam JKPSC
Recruitment JKAS
Stage Prelims
Year 2022
Subject Science and Technology
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