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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