WorksheetsQuiz 3
Total questions: 20
Worksheet time: 10mins
Which blood group provides natural resistance to Plasmodium vivax malaria?
Rh
I/I
P
Duffy
What is a notable characteristic of the Kell (K) antigen?
Absent in neonates
Strongly immunogenic
Destroyed by enzymes
Has a frequency of 50%
What describes the behavior of anti-I antibody?
Associated with HDFN
Reacts best at room temperature
Reacts best at 37°C
It is an IgG antibody
Which red cell antigens are located on glycophorin-A?
M, N
Le
S, s
P
Which blood group antigen is linked to paroxysmal cold hemoglobinuria?
Kell
Duffy
P
I
What may explain an Rh-positive individual developing anti-D antibodies?
Gene deletion
Missing antigen epitopes
Trans position effect
Gene inhibition
Which Rh antigen is most frequently found in Caucasians?
D
E
c
e
Which best describes HLA antibodies?
Naturally occurring
Induced by multiple transfusions
Only directed against granulocyte antigens
Do not cause hemolytic transfusion reactions
Which enzyme is responsible for forming the H antigen on red cells?
Galactosyl transferase
N-acetylgalactosaminyl transferase
L-fucosyl transferase
N-acetylglucosaminyl transferase
Who discovered the ABO blood group system?
Bordet
Pasteur
Landsteiner
Mollison
What is the most clinically significant blood group system for transfusion?
ABO
Rh
Lewis
Kell
On which chromosome is the ABO gene located?
Chromosome 8
Chromosome 10
Chromosome 9
Chromosome 12
If the parents are blood type O and A, what blood types can the offspring have?
O
A
B
A and O only
If one parent is blood type B and the other is AB, which blood type is impossible for their child?
O
A
B
AB
Which antigen is weakly expressed at birth?
A antigen
B antigen
H antigen
None of the above
Which antibody is found in individuals with blood group B?
Anti-A
Anti-B
Anti-AB
None
What antibodies are found in individuals with blood group AB?
Anti-A
Anti-B
Anti-AB
None
At what temperature do ABO antibodies typically react?
-6°C
5°C
23°C
37°C
Which agglutination reaction is described as several large clumps with a clear supernatant?
4+
3+
2+
1+
Which reaction shows numerous small clumps and a cloudy red background?
4+
3+
2+
1+
