Fig. 1From: Effect of SMAD4 gene polymorphism on breast cancer risk in Bangladeshi womenRestriction enzyme (HpyCH4IV) digestion fragments of SMAD4 gene polymorphism (2% agarose gel). Normal Homozygous (NH) has bands of 206Â bp and 46Â bp (washed away), Heterozygous has bands of 206Â bp, 252Â bp and 46Â bp (washed away), Mutant Homozygous (MH) has band of 252Â bpBack to article page