Rh and Common Antigen Frequencies Flashcards

1
Q

R1 - Black

A

0.17

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2
Q

R2 - Black

A

0.11

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3
Q

R0 - Black

A

0.44

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4
Q

r - Black

A

0.26

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5
Q

R1 - White

A

0.42

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6
Q

R2 - White

A

0.14

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7
Q

R0 - White

A

0.04

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8
Q

r - White

A

0.37

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9
Q

RH haplotype uncommon in white and blacks

A

r’ > r” > Rz > ry

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10
Q

Most to least common Rh phenotype in White

A

R1 > r > R2 > R0

More whites are C+ (68%) than Blacks (27%)

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11
Q

Most to least common Rh phenotype in Black

A

R0 > r > R1 > R2

More blacks are c+ (98%) than whites (80%)

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12
Q

% of blood negative for E-c-

A

18-19%

R1R1 or R1r’

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13
Q

What the most common genotypes in Whites?

A
R1r 35%
R1R1 18-19% (c-E-)
rr 15% (Nearly all Rh neg)
R1R2 13% 
R2r 12%
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14
Q

What are the most common genotypes in Blacks?

A
Ror 23%
RoRo 19%   40% E-C-
R1R1 15%
R1r 9%
R2R0 10%
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15
Q

What are the two most common genotypes in Asians?

A

R1 and R2 = 90% of asians

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16
Q

What is the frequency of C antigen in Whites and Blacks?

A
Whites = 70% 
Blacks = 30%
17
Q

What is the frequency of the E antigen in Whites and Blacks?

A

About 25% for both

18
Q

What is the frequency of the c antigen in Whites and Blacks?

A
Whites = 80%
Blacks = 98%
19
Q

What % of whites and blacks are Group O?

A

45% of White

49% of Blacks

20
Q

What % of whites and blacks are Group A?

A

40% of Whites

27% of Blacks

21
Q

What % of whites and blacks are Group B?

A

10% of whites

20% of blacks

22
Q

What % of whites and blacks are Group AB?

A

4%

23
Q

What % of whites and blacks are Rh Negative?

A

15% Whites

8% Blacks

24
Q

What % of whites and blacks are Fya positive?

A

70% whites
10 % Blacks*
*70% = Fy (a-b-)

25
Q

What % of whites and blacks are Fyb positive?

A

80% whites
23% Blacks*
*70% = Fy (a-b-)

26
Q

What % of whites and blacks are Jka positive?

A

75% Whites

90% Blacks

27
Q

What % of whites and blacks are Jkb positive?

A

75% Whites

50% Blacks*