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Table 2 Observed and expected frequencies of significant genes for two and three microarray experiments.

From: Combining mouse mammary gland gene expression and comparative mapping for the identification of candidate genes for QTL of milk production traits in cattle

Experiments compared1

Significance1

Observed

Expected

Chi-squared2

C & S

C & S

4964

3483

2834

 

C only

1407

2888

 
 

S only

1864

3345

 
 

Neither

4253

2772

 

C & S & R

C & S & R

249

77

3240

 

C & S

4964

3483

 
 

C & R

11

64

 
 

S & R

14

74

 
 

C only

1407

2888

 
 

S only

1864

3345

 
 

R only

4

62

 
 

None

4249

2710

 
  1. 1C = Clarkson et al. (16); R = Ron et al. (17); S = Stein et al. (18)
  2. 2Highly significant by any criterion