High-level amplification in the 3q26.2-27 region as detected by microsatellite D3S1530.

Repeats D3S1530, D15S114, and FGA were amplified in a multiplex PCR; the last 2 markers were used as an internal control. The 250–base pair allele of the D3S1530 shows 3.5-fold amplification (arrow).