Hypersensitivity towards any foregin material is due to antibody

Magnetism in materials is due to

Hypersensitivity to an allergen is due to

Some persons are hypersensitive towards some drugs, dust, pollen grains. What type of drugs are used to cure this problem? Name two drugs.

Name any four functions of antibodies.

Assertion (A): Scurvy is caused due to hypersensitivity to certain foodstuff. Reason (R): Scurvy is a non-communicable disease.

Conductivity (kappa) of any conducting material is defined as the

Assertion (A): person with blood group AB can take blood from any other person . Reason(R ):Blood group incompatibility is due to antigen-antibody reaction .Blood group AB has no antibody and thus the antigen of other group is not affected.