Table 1 Theoretical values of FMAR for different ratios of mixtures (except the two contributors with same genotypes).

From: Parallel Analysis of 124 Universal SNPs for Human Identification by Targeted Semiconductor Sequencing

Genotype 1

Genotype 2

Mixture

Formular for the calculation of theoretical FMAR

Theoretical value of FMAR

aa

bb

1:1

2a/(2a + 2b)

0.5000

aa

ab

1:1

3a/(1b + 3a)

0.7500

ab

bb

1:1

3b/(1a + 3b)

0.7500

aa

bb

1:5

10b/(2a + 10b)

0.8333

aa

ab

1:5

7a/(7a + 5b)

0.5833

ab

bb

1:5

11b/(a + 11b)

0.9167

aa

bb

5:1

10a/(10a + 2b)

0.8333

aa

ab

5:1

11a/(11a + b)

0.9167

ab

bb

5:1

7b/(5a + 7b)

0.5833

aa

bb

1:10

20b/(2a + 20b)

0.9091

aa

ab

1:10

12a/(12a + 10b)

0.5455

ab

bb

1:10

21b/(a + 21b)

0.9545

aa

bb

10:1

20a/(20a + 2b)

0.9091

aa

ab

10:1

21a/(21a + b)

0.9545

ab

bb

10:1

12b/(10a + 12b)

0.5455

aa

bb

1:100

200b/(2a + 200b)

0.9901

aa

ab

1:100

102a/(102a + 100b)

0.5050

ab

bb

1:100

201b/(201b + a)

0.9950

aa

bb

100:1

200a/(200a + 2b)

0.9901

aa

ab

100:1

201a/(201a + b)

0.9950

ab

bb

100:1

102b/(102b + 100a)

0.5050