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Table 2 Distribution of CBS T833C/844ins68 polymorphism in different groups.

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