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Question

Biology Question on human health and disease

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R

Assertion (A) : The principle of vaccination is based on the property of memory cells of the immune system.

Reason (R) : Vaccines generate memory B cells and T cells that recognise the pathogen quickly.

In the light of the above statements, choose the correct answer from the options given below

A

If both assertion and reason are true and reason is the correct explanation of assertion

B

If both assertion and reason are true but reason is not the correct explanation of assertion

C

If assertion is true but reason is false

D

If both assertion and reason are false

Answer

If both assertion and reason are true and reason is the correct explanation of assertion

Explanation

Solution

Answer (a) If both assertion and reason are true and reason is the correct explanation of assertion

Assertion : The principle of vaccination is based on the property of memory cells of the immune system. (Correct)

Reason : Vaccines generate memory B cells and T cells that recognise the pathogen quickly. (True and correct explanation)