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Partial electropherograms representing the mutant (above) and normal (below) forms (shown by arrows) of the mutation cluster region (MCR) of APC. (A) Deletion of the AAAAG pentamer at codons 1307/08/09 in the MCR region of APC and deletion of the AA dimer at codons 1307/08 in the MCR region of APC. (B) Insertion of A at codon 1525 in the MCR region of APC. (C) Polymorphism of codon 1492 in the MCR region of APC.
