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Parental noncontribution within family C052 at the CCM3 locus. The genealogical tree for family C052, with CCM3 haplotypes, is shown. A null allele was detected at the D3S3673, D3S1264, and D3S3622 markers (boxed), which strongly suggested the existence of a deletion; this deletion was confirmed by additional genotyping (fig. 3).
