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Table 3 Genotype frequency distributions of SNP8 in pedigrees (Sample 4)

From: Recessive genetic mode of an ADH4 variant in substance dependence in African-Americans: A model of utility of the HWD test

 

European-American

African-American

 

AD

DD

Unaffected

AD

DD

Unaffected

 

N

f

N

f

N

f

N

f

N

f

N

f

A/A

271

0.903

541

0.905

85

0.895

293

0.945

626

0.963

127

0.992

A/G

26

0.087

53

0.089

8

0.084

16

0.052

24

0.037

1

0.008

G/G

3

0.010

4

0.007

2

0.021

1

0.003

0

0.000

0

0.000

A

568

0.947

1135

0.949

178

0.937

602

0.971

1276

0.982

255

0.996

G

32

0.053

61

0.051

12

0.063

18

0.029

24

0.018

1

0.004

  1. AD, alcohol dependence; DD, drug dependence.