<prompt> Which of the following responses is found in atopic individuals -IgM productionIgE productionIgA productionHypogammaglobulinemia  <response>: Atopy is typed I hypersensitivity reaction. Type I hypersensitivity reaction is IgE dependent. Cytotoxic IgE antibodies are fixed on the surface of tissue cells mast cells and basophils in sesensitizedndividuals. The antigen combines with the cell fixed antibody, leading to release of a phapharmacologicallytive substance that proproducese clinical reaction. Reference : Anathanarayan panikers 9th edition, pg: 162 p 