ABO ADVANCED FORMULAS
PRACTICE SOLUTION PACK 2026
COMPLETE TESTED QUESTIONS
AND CORRECT ANSWERS GRADED
A+
◉ Which A subgroup can be detected serologically only after
adsorption and elution studies? Answer: Ael
◉ Select the statement that is true regarding group A2 red cells.
Answer: The A2 allele produces the same glycosyltransferase as the A1
allele.
◉ What is the immunodominant sugar for the H antigen? Answer:
Fucose
◉ According to Landsteiner's rule (law), what ABO antibody will be
detected in a group AB individual's serum? Answer: None
◉ A patient is expressing soluble forms of H antigens in his secretions.
Predict this person's genotype. Answer: HH, Sese
◉ Which of the following situations is most likely to cause an ABO
incompatibility if blood is transfused? Answer: Group A plasma to a
group AB recipient
PRACTICE SOLUTION PACK 2026
COMPLETE TESTED QUESTIONS
AND CORRECT ANSWERS GRADED
A+
◉ Which A subgroup can be detected serologically only after
adsorption and elution studies? Answer: Ael
◉ Select the statement that is true regarding group A2 red cells.
Answer: The A2 allele produces the same glycosyltransferase as the A1
allele.
◉ What is the immunodominant sugar for the H antigen? Answer:
Fucose
◉ According to Landsteiner's rule (law), what ABO antibody will be
detected in a group AB individual's serum? Answer: None
◉ A patient is expressing soluble forms of H antigens in his secretions.
Predict this person's genotype. Answer: HH, Sese
◉ Which of the following situations is most likely to cause an ABO
incompatibility if blood is transfused? Answer: Group A plasma to a
group AB recipient
