Biology Biotechnology and Its Application Biotechnological Applications in Medicine Single Correct MCQ
Published on: August 11, 2026

Second generation vaccines are prepared by recombinant DNA technology. Which of the following is/are examples of such vaccines?

A
Herpes virus vaccine and
B
Hepatitis-B virus vaccine
C
Salk’s polio vaccine
D
Both

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Verified by Experts
The correct answer is:
D

Second-generation vaccines are produced using recombinant DNA technology. Examples include:

• Herpes virus vaccine

• Hepatitis-B virus vaccine

Salk's polio vaccine is a traditional killed-virus vaccine, not a recombinant DNA vaccine.

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