<prompt> Which of the following is not true regarding IgE antibodiesIt mediated release of histamine and other chemicals mediatorIt is the primary antibody involved in allergic reactionIt is involved in anti parasitic immune responseMay cross the placenta and fix complement  <response>: May cross the placenta and fix the compliment _IgG not IgE IgEs main function is immunity to parasites such as helminths like Schistosoma mansoni, Trichinella spiralis, and Fasciola hepatica. IgEis utilized during immune defense against ceain protozoan parasites such as Plasmodium falciparum 