AIIMS 2014 Biology Question Paper for free online practice with solutions

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Question : 53 of 60

Marks: +1, -0

Assertion : Second infection of the same pathogen is quickly eliminated.
Reason : Preformed memory B and T-cells elicit a quick and vigorous attack on pathogens.

Both Assertion and Reason are true and Reason is the correct explanation of Assertion
Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion
Assertion is true but Reason is false
Both Assertion and Reason are false

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