ABO ADVANCED FORMULAS TEST
PAPER 2026 COMPLETE QUESTIONS
AND VERIFIED ANSWERS GRADED
A+
◉ What immunoglobulin class is primarily associated with ABO
antibodies? Answer: IgM
◉ What immunodominant sugar confers B blood group specificity?
Answer: D-galactose
◉ An individual has the genotype of AO, hh. What antigens would be
present on the red cells of this individual? Answer: A only
◉ What gene controls the presence of soluble H substance in saliva?
Answer: Se
◉ Which lectin agglutinates A₁ red cells? Answer: Dolichos biflorus
◉ What immunodominant sugar determines the specificity of H
antigens? Answer: L-fucose
◉ Which of the following situations may produce ABO discrepancies in
the serum testing? Answer: All the above (newborn, patient with
hypogammaglobulinemia, cold alloantibody)
PAPER 2026 COMPLETE QUESTIONS
AND VERIFIED ANSWERS GRADED
A+
◉ What immunoglobulin class is primarily associated with ABO
antibodies? Answer: IgM
◉ What immunodominant sugar confers B blood group specificity?
Answer: D-galactose
◉ An individual has the genotype of AO, hh. What antigens would be
present on the red cells of this individual? Answer: A only
◉ What gene controls the presence of soluble H substance in saliva?
Answer: Se
◉ Which lectin agglutinates A₁ red cells? Answer: Dolichos biflorus
◉ What immunodominant sugar determines the specificity of H
antigens? Answer: L-fucose
◉ Which of the following situations may produce ABO discrepancies in
the serum testing? Answer: All the above (newborn, patient with
hypogammaglobulinemia, cold alloantibody)
