Fig. 1From: Congenital septal defects in Karachi, Pakistan: an update of mutational screening by high-resolution melting (HRM) analysis of MTHFR C677TGel image of restriction analysis by Hinf I digestion. Lanes 1, 2 and 4–7 show only one band, which confirms the sample contain homozygous genotype whereas lanes 3 and 8 have showed three bands (106, 176 and 282 bp), and it confirms that the sample has heterozygous genotypeBack to article page