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Electropherograms from Sanger sequencing of the 410 bp amplicon from homozygous and heterozygous DNA in identifying polymorphic sites. Panel (A). Homozygous DNA (CSN1S1B/CSN1S1B) bearing G and C at positions 70 and 145, respectively. Panel (B). Heterozygous DNA (CSN1S1B/CSN1S1Bbt) bearing two overlapping peaks at positions 70 and 145 (highlighted in yellow as S and Y, respectively), which indicate ambiguity in the attribution of G/C and C/T nucleotides, respectively.
