Table 2 Possible mosaic loss of the X chromosome in cell lines from four females. SNPscan analyses revealed low X chromosome copy number values in four female cases. 44 males and 46 females comprise a group of 30 apparently normal CEPH trios. Values represent mean copy number ± standard deviation.

Hind

Xba

Hind

Xba

NA10854

1.43 ± 0.25

1.55 ± 0.34

2.04 ± 0.34

2.09 ± 0.46

NA07348

1.63 ± 0.32

1.73 ± 0.34

2.05 ± 0.40

2.09 ± 0.46

NA10859

1.78 ± 0.35

1.89 ± 0.47

2.05 ± 0.40

2.10 ± 0.55

NA12145

1.79 ± 0.31

1.84 ± 0.38

2.05 ± 0.36

2.09 ± 0.47

Males (n = 44)

1.20 ± 0.06

1.28 ± 0.06

2.06 ± 0.02

2.09 ± 0.02

Females (n = 46)

2.03 ± 0.13

2.09 ± 0.12

2.06 ± 0.02

2.09 ± 0.01