Other Blood Group Systems

Question 1

1. Antigens carried on molecules with a GPI linkage to the
   red cell surface are often involved in which of the following functions?
   a. cytokine receptor
   b. glycerol and water transport
   c. enzymatic activities
   d. adhesion function

Answer 1

c. enzymatic activities

Question 2

2. . Which of the following is a carbohydrate antigen?
   a. Jka
   b. Leb
   c. AnWj
   d. GIL

Answer 2

b. Leb

Question 3

3. Which of the following multipass carrier molecule has
   the unusual exofacial N-terminus orientation?
   a. Fy glycoprotein
   b. CHIP-1
   c. Kx glycoprotein
   d. Do glycoprotein

Answer 3

a. Fy glycoprotein

Question 4

Select the correct numerical terminology to describe an
individual with the Leach phenotype.
a. GE:-2, -3, -4
b. GE:-2, -3, 4
c. GE:-2, 3, 4
d. GE:2, 3, 4

Answer 4

a. GE:-2, -3, -4

Question 5

5. Anti-U may be found in individuals with which of the
   following phenotype?
   a. M - N - S - s +
   b. M +N - S- s +
   c. S - s -
   d. S + s-

Answer 5

c. S - s -

Question 6

6. Which of the following antigens are destroyed by ficin?
   a. M
   b. Jkb
   c. Lea
   d. Doa

Answer 6

a. M

Question 7

7. Which one of the following characteristics is common
   for anti-Lua?
   a. warm reacting
   b. mixed field appearance
   c. IgG only
   d. hemolysis at 37C

Answer 7

b. mixed field appearance

Question 8

8. Inheritance of which of the following genes determines
   Lewis antigen expression?
   a. FUT1
   b. FUT2
   c. FUT2/FUT3
   d. FUT3

Answer 8

d. FUT3

Question 9

9. Blacks whose red cells type as Fy(a-b-) may have
   which of the following antigen(s) on their tissue cells?
   a. Fya
   b. Fyb
   c. Fya and Fyb
   d. Fyc

Answer 9

b. Fyb

Question 10

10. Which of the following blood system antibodies are
    notorious for weakening over time?
    a. Rh
    b. Duffy
    c. Diego
    d. Kidd

Answer 10

d. Kidd

Question 11

The expression of Wrb is dependent on the presence of
which of the following?
a. AE1
b. GPA
c. GPB
d. GPC

Answer 11

b. GPA

Question 12

12. Individuals with PNH will not express which of the
    following antigens?
    a. MNS
    b. Duffy
    c. Yt
    d. Ok

Answer 12

a. MNS

Question 13

Which of the following antigens are carried on a component of complement?
a. Kx
b. Lutheran
c. Chido/Rogers
d. Gil

Answer 13

c. Chido/Rogers

Question 14

14. Which of the following antigens is linked to the Kell glycoprotein by a single disulfide bond?
    a. JMH
    b. Kx
    c. Gerbich
    d. Dombrock

Answer 14

b. Kx

Question 15

15. Red cells that type as Ok(a-) are typically found in
    which of the following populations?
    a. Blacks
    b. Whites
    c. Norwegian
    d. Japanese

Answer 15

d. Japanese