Multiple choice

Assertion: Allergy is caused by histamines. Reason: Antibodies are Y-shaped protein molecules.

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

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

  3. A is true but R is false.

  4. A is false but R is true.

  5. Both A and R are false.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

This option is correct,  because the correct explanation is: the binding of antigen-antibody complex with the mast cells releases histamines which cause allergy.

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