12 Questions
Which type of antibodies is typically produced in response to red cell antigen stimulation?
Immune antibodies
What is the characteristic of antibodies associated with hemolytic transfusion reactions, hemolytic disease of the newborn, and autoimmune hemolytic anemia?
Clinically significant antibodies
Which blood group antigen is directly related to glycophorin?
MNS
What is the molecular size requirement for antigens present on red blood cells?
Sufficient molecular size
Which type of antibody is usually produced in response to environmental antigens like bacteria and pollen?
Naturally occurring antibodies
What is the characteristic feature of irregular antibodies in a patient's serum?
Present in a very small human population only
What is the main difference between an antigen and an immunogen?
Immunogens trigger an immune response.
Which term describes an incomplete antigen that can react with specific antibodies but is not immunogenic?
Hapten
What is the role of an epitope in an antigen molecule?
Confers specificity to the antigen
Where are blood group antigens mainly distributed in the body?
Throughout tissues, white cells, and platelets
Why are ABH antigens in tissues important for organ transplants?
They determine tissue compatibility
What can happen to a hapten to make it immunogenic?
It can bind with a schlepper molecule
This quiz covers the fundamental principles of immunology and antigen-antibody reactions, distinguishing between antigens and immunogens. It also discusses the properties of antigens and the immune response triggered by immunogens in the host.
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