From: Cystathionine β-synthase T833C/844INS68 polymorphism: a family-based study on mentally retarded children
Groups
No of chromosome
No of mutants
Mutant allele frequency ± SE
Control
276
11
0.0398 ± 0.0117
CVD Patients
60
1
0.0166 ± 0.0166
MR probands
380
12
0.0316 ± 0.0089
Parents of probands
534
15
0.028 ± 0.0071