From: Cystathionine β-synthase T833C/844INS68 polymorphism: a family-based study on mentally retarded children
Allele
Transmitted
Non-transmitted
χ2
P value
HHRR analysis (all mothers)
1
176
180
2.0449
0.1527
2
6
HHRR analysis (heterozygous mothers only)
4.00
0.0455