Antigens and Antibodies — MCQs

All of the following forces are involved in antigen-antibody reactions, except:

In ABO blood grouping, which is False?

Which immunoglobulin is known to be heat-labile?

CD40 deficiency in a person signifies?

A researcher is studying the interactions between foreign antigens and human immune cells. She has isolated a line of lymphocytes that is known to bind antigen-presenting cells. From this cell line, she has isolated a cell surface protein that binds to class I major histocompatibility complex molecules. The continued activation, proliferation and survival of this specific cell line requires which of the following signaling molecules?

Adjuvants given along with antigens are going to

CD 40 marker is absent in the person. Which of the following would be seen?

In chronic allergy, which Ig is more persistent in the body?

Which of the following is the most potent stimulator of Naive T-cells?

Which of the following statements about the secondary immune response is false?