IMMUNOHEMATOLOGY EXAM
ACTUAL QUESTIONS AND CORRECT
ANSWERS ACTUAL QUESTIONS AND
CORRECT ANSWERS
Amorphs are genes which - Correct answers✔✔produce no detectable effects
The position occupied by a gene on a chromosome is called the: - Correct answers✔✔locus
The electrical force on red cells in solution that causes them to repel each other is called the: -
Correct answers✔✔zeta potential
Situation: A technologist uses a red cell suspension that is too concentrated for a cell grouping
test. This error might produce which of the following? - Correct answers✔✔a false negative
result due to postzone
ABO reverse grouping consists of the addition of: - Correct answers✔✔cells of known antigen
composition to serum of unknown antibody content
"Sensitized" red cells are: - Correct answers✔✔coated with antibodies
Anti-A,B serum - Correct answers✔✔all but a
The A2 antigen occurs in what percentage of group A individuals? - Correct answers✔✔20
, Why isn't reverse blood grouping reliable for newborn infants? - Correct answers✔✔because the
newborn's antibody titer is very low
If the mother is group O and the infant is group B, the infant's blood group genotype is: - Correct
answers✔✔BO
Which of the following substances will be found in the saliva of a group B secretor? - Correct
answers✔✔B and H
If two homozygous group A adults were to have offspring, what blood type might those offspring
be: - Correct answers✔✔A
The gene responsible for the formation of the immediate red cell precursor substance which may
then be modified by the A and B genes is: - Correct answers✔✔H
A fucose is added to the ABO backbone by which gene? - Correct answers✔✔Le, H, Se (All but
P1)
A patient's ABO blood grouping produced the following results:
Anti-A: Pos
Anti-B: Pos
A1 cells: Pos
B cells: Neg
Auto Control: Neg
ACTUAL QUESTIONS AND CORRECT
ANSWERS ACTUAL QUESTIONS AND
CORRECT ANSWERS
Amorphs are genes which - Correct answers✔✔produce no detectable effects
The position occupied by a gene on a chromosome is called the: - Correct answers✔✔locus
The electrical force on red cells in solution that causes them to repel each other is called the: -
Correct answers✔✔zeta potential
Situation: A technologist uses a red cell suspension that is too concentrated for a cell grouping
test. This error might produce which of the following? - Correct answers✔✔a false negative
result due to postzone
ABO reverse grouping consists of the addition of: - Correct answers✔✔cells of known antigen
composition to serum of unknown antibody content
"Sensitized" red cells are: - Correct answers✔✔coated with antibodies
Anti-A,B serum - Correct answers✔✔all but a
The A2 antigen occurs in what percentage of group A individuals? - Correct answers✔✔20
, Why isn't reverse blood grouping reliable for newborn infants? - Correct answers✔✔because the
newborn's antibody titer is very low
If the mother is group O and the infant is group B, the infant's blood group genotype is: - Correct
answers✔✔BO
Which of the following substances will be found in the saliva of a group B secretor? - Correct
answers✔✔B and H
If two homozygous group A adults were to have offspring, what blood type might those offspring
be: - Correct answers✔✔A
The gene responsible for the formation of the immediate red cell precursor substance which may
then be modified by the A and B genes is: - Correct answers✔✔H
A fucose is added to the ABO backbone by which gene? - Correct answers✔✔Le, H, Se (All but
P1)
A patient's ABO blood grouping produced the following results:
Anti-A: Pos
Anti-B: Pos
A1 cells: Pos
B cells: Neg
Auto Control: Neg
