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PCR amplification with radiolabeled primers from D1VS796 locus from genomic DNA isolated from peripheral blood from the newborn with trisomy 17 mosaicism identified by amniocentesis (middle lane), her mother (right lane), and her father (left lane). Each parent was heterozygous for different alleles. Biparental (normal) inheritance of D17S796 was seen in the newborn, with no evidence of disomy for chromosome 17.
