Assertion: Second generation vaccines are safer to use.
Reason: They are produced by genetic engineering.

Options

A. If both assertion and reason are true and the reason is the correct explanation of assertion
B. If both assertion and reason are true and the reason is not the correct explanation of assertion
C. If assertion is true but the reason is false
D. If assertion is false but reason is true

Answer

B

Explanation

Second gerenation vaccines consist of a few antigens present on the surface of the infecting agents rather than the whole inactivacted organisms. The surface antigens are produced in huge quantities with the help of recombinant,DNA rechnique or genetic engineering. Then, they are injected in safer dose to healthy individuals for development of immunity. Second gerenation vaccines are simple,safer and more potents.