Table 2 Student's t-tests between 3 groups of mismatch positions for each mismatch type.

A-C

0.00187

0.000128

0.525*

673

A-G

6.29E-05

6.78E-10

0.0423

2567

A-T

2.78E-08

8.31E-10

0.747*

553

T-A

0.0821*

0.00499

0.328*

506

T-C

0.00733

0.047

0.461*

2920

T-G

0.553*

0.185*

0.422*

435

C-A

0.187*

2.54E-09

1.89E-06

778

C-G

0.000115

3.10E-06

0.377*

627

C-T

1.47E-14

2.13E-46

1.66E-12

2874

G-A

2.17E-06

8.23E-19

6.08E-05

2624

G-C

0.00103

2.76E-05

0.339*

687

G-T

0.0126

5.62E-05

0.103*

556