Microbiology Which of the following is not true regarding IgE antibodies? A It mediates release of histmaine and other chemical mediators B It is the primary antibody involved in allergic reactions C It is involved in anti-parasitic immune responses D May cross the placenta and fix complement 💡 Explanation Which of the following is not true regarding IgE antibodies? ✓ Correct Answer: D. May cross the placenta and fix complement