Assertion (A) : There is no vaccine for AIDS. Reason (R) : The AIDS virus changes its genetic code.

A. Both A and R are true and R is the correct explanation of A.

B. Both A and R are true but R is NOT the correct explanation of A.

C. A is true but R is false.

D. A is false but R is true.

E. Both A and R are false.

Answer: A. Both A and R are true and R is the correct explanation of A.

A vaccine contains the inactivated germs of the disease. But the AIDS virus changes its genetic code and so on vaccine has been invented for it.

Posted in: Type 1 - Assertion and Reason - Verbal Reasoning