Biology : PU-CET (U.G) 2016 Panjab University Entrance Exam With Answers

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29.

Vaccines Which Are Result Of Recombinant DNA Technology Are Called :

A: First Generation Vaccines

B: Second Generation Vaccines

C: Third Generation Vaccines

D: Fourth Generation Vaccines

The answer is: C

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Explanation

Correct option is C)

The first generation vaccines consist of live attenuated/ heat-killed vaccines in which whole organisms in the weakened live form or heat-killed form are injected.

Second-generation vaccines are those vaccines in which isolated deactivated toxins are given. Third-generation vaccines are those in which recombinant techniques are used for the production of vaccines. In this technique DNA encoding, the antigen is inserted into a vector which will be recognized as a pathogen in the host. Such that the host immune system generates an immune response against the vector and thereby the antigen.

So, the correct answer is 'Third generation vaccines'.