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Question 1 of 20
1. Question
The linked HLA genes on each chromosome constitute a(n):
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Question 2 of 20
2. Question
Most blood group system genes and their resulting genetic traits display what type of inheritance?
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Question 3 of 20
3. Question
The mating of an Xg(a+) man and an Xg(a-) woman will only produce:
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Question 4 of 20
4. Question
The observed phenotypes in a particular population are:
phenotype number of persons
Jk(a+b-) 122
Jk(a+b+) 194
Jk(a-b+) 84
What is the gene frequency of Jka in this population?
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Question 5 of 20
5. Question
In a random population, 16% of the people are Rh-negative (rr). What percentage of the Rh-positive population is heterozygous for r?
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Question 6 of 20
6. Question
Which phenotype could not result from the mating of a Jk(a+b+) female and a Jk(a-b+)male?
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Question 7 of 20
7. Question
Which of the following phenotypes is the result of homozygous inheritance of the corresponding genes?
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Question 8 of 20
8. Question
What do the On(h (Classical Bombay), group O, and Lu(a-b-) phenotypes have in common?
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Question 9 of 20
9. Question
Which of the following antibodies is usually clinically insignificant?
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Question 10 of 20
10. Question
An individual’s red blood cells give the reactions with Rh antisera shown in this table:
anti-D
anti-C
anti-E
anti-c
anti-e
Rh control
4+
3+
0
3+
3+
0
The individual’s most probable genotype is:
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Question 11 of 20
11. Question
A blood donor has the genotype: hh, AB. Using anti-A and anti-B antisera, the donor’s red cells will type as group:
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Question 12 of 20
12. Question
An individual has been sensitized to the k antigen and has produced anti-k. What is the most probable KEL system genotype for this individual?
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Question 13 of 20
13. Question
Anti-Fy3 will fail to react with which of the following enzyme-treated red cells?
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Question 14 of 20
14. Question
A mother has the red cell phenotype D+C+E-c-e+ with anti-c (titer of 32 at AHG) in her serum. The father has the phenotype D+C+E-c+e+. The baby is Rh-negative and not affected with hemolytic disease of the newborn. What is the baby’s most probable Rh genotype?
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Question 15 of 20
15. Question
In an emergency situation, Rh-negative red cells are transfused into an Rh-positive person of the genotype CDe/CDe. The first antibody most likely to develop is:
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Question 16 of 20
16. Question
A patient’s red cells type as shown in this table:
anti-C
anti-D
anti-E
anti-c
anti-e
+
+
+
+
+
Which is the most probable genotype?
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Question 17 of 20
17. Question
A patient’s red cells type as shown in this table:
anti-D
anti-C
anti-E
4+
0
0
Which of the following genotype would be consistent with these results?
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Question 18 of 20
18. Question
The red cells of a nonsecretor (se/se) will most likely type as:
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Question 19 of 20
19. Question
Which of the following phenotypes will react with anti-f?
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Question 20 of 20
20. Question
A patient’s red blood cells gave the reactions shown in this table:
anti-D
anti-C
anti-E
anti-c
anti-e
Anti-f
+
+
+
+
+
0
The most probable genotype of this patient is:
CorrectIncorrect