Prevalence of fragile X syndrome in males and females in Indonesia

Table 2 X chromosome inactivation pattern in all full mutation females

Pedigree	XCI	Clinical features
Family 3/III:2	87/13 (non random)1	Affected
Family 3/III:9	96/4 (non random)1	Affected
Family 7/III:2	93/7 (non random)1	Affected
Family 7/III:3	82/18 (non random)1	Affected
Family 1/III:6	75/25 (random)	Affected (mild)
Family 4/IV:1	74/26 (random)	Affected (mild)
Family 3/III:6	60/40 (random)	Not affected
Family 4/III:3	84/16 (non random)2	Not affected
Family 5/II:2	67/33 (random)	Not affected

¹The normal allele is inactive by X chromosome inactivation (XCI) and the expanded allele is active but methylated because of the expansion;

²the normal allele is active and the expanded allele is not active.